90MM BAYONET MOUNT LENSES
90mm f/4 Elmar (Version 1)
Prototypes
The collapsible version in screw mount, identified by the Null-series starting from 633001 and the production number beginning with 1010001, had a design plan that predated the decision to manufacture of the bayonet mount version of this lens361.
One specimen of collapsible 90mm f/4 prototype circa 1952 without serial number was sold for 90000 Euros including buyer's premium at the 23rd WestLicht Camera Auction on May 25, 2013401. The lot was described as "extremely rare prototype Elmar without serial number in collapsible M-mount, aperture scale reads from rear to front, black painted front ring, meter scale... similar lenses are illustrated in Paul-Henry van Hasbroeck 'Leica in Colour', page 133..."401.
Pre-Series
The bayonet mount collapsible 90mm f/4 prototype number 1010004 dated 1953 was sold for 1600 Euros including buyer's premium at the 3rd Wetzlar Camera Auction on October 9, 2021426. The lot was described as "Pre-series lens of the ILNOO to the Leica M3. The serial number range 1010001 to 1010100 was allocated for these lenses, but actually a much smaller number was manufactured. These lenses were produced to the prototype M3 cameras of 1953. The styling already largely corresponding to the later series version... Literature: Willy Hahne, "Vormodell Elmar 4/90 versenkbar (premodel Elmar 90 f/4 collapsible)", Vidom 12, p. 18ff.; Lars Netopil, "Rare Leica", p. 465."426.
The collapsible 90mm f/4 prototype number 1010010 dated 1953 was sold for 3600 Euros including buyer's premium at the 1st Wetzlar Camera Auction on October 5, 2019428. The lot was described as "Pre-series lens of the later ILNOO to the Leica M3. With still significantly different design of the lens head. It was the serial number range 1010001 to 1010100 allocated for these lenses, but actually a much smaller number was manufactured. These lenses were produced to the prototype M3 cameras of 1953.
The mount in very nice condition, the helicoid a bit stiff. The optics with haze. Included:
 Both caps. Literature: 
Willy Hahne, "Vormodell Elmar 4/90 versenkbar (premodel Elmar 90 f/4 collapsible)", Vidom 12, p. 18ff.; 
Lars Netopil, "Rare Leica", p. 465."428.
The collapsible 90mm f/4 prototype number 1010059 dated circa 1952 was sold for 2280 Euros including buyer's premium at the 11th WestLicht Camera Auction on May 26, 2007413. The lot was described as "pre-production collapsible Elmar 9cm with black front ring and painted red dot from a small batch of approx. 50 lenses..."413.
The collapsible 90mm f/4 "Pre-series" prototype for Leica M number 1010073 dated 1952 was sold for 14400 Euros including buyer's premium at the 24th WestLicht Camera Auction on November 23, 2013400. The lot was described as "rare collapsible 9cm Elmar for M, prototype of the 3-element Elmar from a small batch of approx. 50 lenses, similar lenses are illustrated in Hasbroeck, Leica in Colour, p.133..."400.
Production - Rigid Variant
The rigid variant of 90mm f/4 Elmar lens in bayonet mount was announced in 195430. 90mm f/4 Elmar (version 1) in rigid mount was designated by codeword ELANG-M (later ELGAM542) and catalog number 11130542 and was sold for 93 USD179. The lens had 4 elements542.
The lens was supplied with a 42mm front diameter accepting E39 filters and a cap30.
The f-aperture scale was engraved on the diaphragm actuating ring which turned from right to left in stopping down30. The ring was also wider to accommodate the engravings, and the lens head grooved to accept the IUFOO hood30.
The physical length of the lens was 85mm30.
The lens was in matte chrome with black leatherette covered base30.
Early lenses were engraved in either feet or meters; later lenses used dual scale542.
The removable 90mm Elmar lens head (ERKOM 11128) was designed to be used with the focusing mount (OUAGO 16467) on the Visoflex II, Visoflex IIA, and Visoflex III reflex housings542. There was also an extension tube (OTQNO 16468) available for additional length542. When used with the Bellows II, the ERKOM lens provided a focusing range from infinity down to life size542.
Production - Collapsible Variant
The collapsible variant of 90mm f/4 Elmar lens in bayonet mount was announced in 195430. 90mm f/4 Elmar (version 1) in collapsible mount was designated by codeword ILNOO/11131542. It was initially was sold for 150 USD179.
This lens was designed to be so compact that it could fit into the standard ever-ready case, which was a significant advantage at the time, as many photographers carried their cameras in cases361.
General optical and mechanical improvements, including the coating of lens surfaces, resulted in enhanced optical performance for collapsible variant of 90mm f/4 Elmar lens361. While the optical layout remained unchanged, several new types of glass were utilized361. Notably, the clarity in the reproduction of fine details saw improvement, which would primarily be noticeable in slide projections361. The total sales number was approximately 25000 units361.
The lens included an infinity lock with a release button, a safety feature that prevented focusing unless the lens is fully extended and locked with a short turn of the barrel30. According to Japanese Leica historian Kazuo Nakagawa, this lens could not be fully extended and locked in place577. The distance scale was visible through a cut-out on the top of the mount, positioned next to the depth of focus scale for easy reading from above30.
The lens head and focusing mount were finished in matte chrome, while the barrel and lower expanded section had a smooth chrome finish30. A black leatherette ring covered the face of the expanded section of the lens barrel, likely for aesthetic purposes and to serve as a buffer30.
The ILNOO lens featured a click-stop diaphragm and was compatible with E-39 screw-in filters as well as the IUFOO lens hood542. It also had a parallel (non-rotating) focusing mount542. The four-element ILNOO was listed in the availability sheets of E. Leitz, Inc. in New York as late as January 1969542.
90mm f/2 Summicron (Version 1)
Screw mount SOOZI Wetzlar 1951
In his "Geburtstage der Leitz-Foto-Konstruktionen ab 1927" book, Wilhelm Albert dated the "birthday" of the coupled 9cm f/2 lens with linear guide with lens hood visually similar to HMOOD ("Objektiv f=9cm 1:2 mit Geradführung und E-Kupplung und Gegelichtblende") as July 27, 1951, and noted himself as designer573. It was initially introduced as a Double Gauss type with six elements513. Initially, a small pre-production run was conducted, covering serial numbers from 1119001 to 1119100513, possibly in 1953, and this production remains one of the mysteries of the Leitz Company361. However, it remained unclear if all of these serial numbers were actually issued513. Factory records show that 97 units in the serial number range 1119001-1119097 were shipped to the dealer Bauer in Düsseldorf under order number 304309 on March 29, 1967119. Of these:
- The very first lens ever produced, numbered 1119001, was sold for 4080 Euros including buyer's premium at the 45th Leitz Photographica Auction on November 23, 2024378.
- Lens number 1119005 was illustrated on the page 74 James L. Lager's "Leica: An Illustrated History - Volume 2 - Lenses - Signed Deluxe Limited Edition" book542. The photograph was credited to "Butler photo"542.
- Lens number of 1119009 dated circa 1953 was auctioned off on 26th WestLicht Photographica Auction397. The lens came from Bawendi collection397.
- Lens head of 1119019 dated circa 1953 was auctioned off on 46th Leitz Photographica Auction377.
- Lens number 1119021 was featured on xingzhelitao.com webpage.
- Lens number of 1119025 dated circa 1953 was auctioned off on 15th WestLicht Photographica Auction409.
- Lens number 1119036 was listed for sale on eBay for 7499 Euros on December 8, 2025.
- Lens number 1119049 dated 1967 was auctioned off on 48th Leitz Photographica Auction (The online-only version)586.
- Lens number 1119051 was illustrated on the page 200 James L. Lager's "Leica: An Illustrated History - Volume 2 - Lenses - Signed Deluxe Limited Edition" book542.
- Lens number 1119063 was auctioned off on Christie's on November 22, 2006.
- Lens number 1119078 was illustrated on the page 74 James L. Lager's "Leica: An Illustrated History - Volume 2 - Lenses - Signed Deluxe Limited Edition" book542.
- Lens number 1119079 was auctioned off at OstLicht Auction on May 28, 2026.
- Lens number 1119081 was for sale on laoxiangji.com (Auction Team Breker) on March 20, 2010.
- Lens number 1119082 was listed for sale on eBay for 3950 USD.
- Lens number of 1119090 dated circa 1953 was auctioned off on 46th Leitz Photographica Auction377.
- Lens number of 1119096 was auctioned off on Toovey's Antique and Fine Art Auction.
This first version of the 9cm f/2 Summicron228 lens was initially intended for use on Leica IIIf and Leica IIIg cameras31.
In the serial number documentation, these lenses are clearly defined and allocated, but what ultimately happened to these 200 allocated lenses is not fully known361. Consequently, any of the at most 100 SOOZI lenses produced during the Wetzlar run were considered true rarities513. Even rarer is a black-painted screw mount lens, which comes in two variants361. There are lenses with either finely knurled rings or scalloped rings, as well as versions with one or two series of aperture engravings on the ring361. Additionally, the lenses feature either clockwise or anti-clockwise movement361.
These lenses were never featured in any of Leitz’s catalogs and were never officially marketed513. Dr. Bahman Bawendi estimated that only around 50 units were produced as screw mount lenses, primarily for testing purposes513.
The barrel of the SOOZI lens was chrome-plated and featured a short focusing mount made of brass513. Weighing 860 grams, the lens was easy to handle and included a rectilinearly guided mount with three continuously grooved rings and a removable lens hood513.
On the lens barrel, the fixed aperture scale, which ranged from f/2 to f/16, was engraved twice on opposite sides513. However, the aperture ring only had a one-sided triangular engraving corresponding to the index, meaning one of the aperture scales was not functional513. It was believed that the Summicron 90 mm f/2 was originally designed without the rectilinear guide, similar to its predecessor, the Summarex513. In that case, the double engraving on the aperture scale would have been essential for practical reasons513.
The focus distance could be set from infinity down to 1 meter513. Additionally, the ledge beneath the depth of field index, topped with an oval-tipped tripod mount, was designed as a double ring513.
SOOZI and SOOZI-M Midland 1957
A prototype lens number 0000038 was illustrated on page 13 of Viewfinder 13(4) from 1980. According to the article accompanying the image, this prototype was developed in Germany, and there were some fundamental differences between the German prototype lenses and their subsequent Canadian-produced counterparts. The Wetzlar lens featured a chamber measuring 0.5 cm by 0.25 cm around the front of the lens, the purpose of which remained unknown. The prototype 0000038 included a mechanism for adjusting the F-stops that was quite similar to that found on the 8.5 cm f/1.5 Summarex, with a rotating triangular indicator that moved past a fixed F-stop scale. In contrast, the Canadian production model had a fixed circular indicator with a movable F-stop scale. Both the earliest Canadian lenses, identified by serial number 147XXXX, and the Wetzlar Summicron had a bright red 'R' marking for infrared focusing. According to Leitz production records, only 12 screw mount and 25 bayonet 9 cm Summicrons were produced in Germany and released to the public. This rarity made the German Summicron one of the rarest lenses produced by Leitz.
In 1957, Ernst Leitz Canada Ltd in Midland began producing the SOOZI, under the leadership of engineers Walter Kluck, Walter Mandler, and Walter Bauer513. Mandler developed a new calculation for the construction of the SOOZI lens513. The brass barrel of the SOOZI Midland version underwent several modifications compared to the screw mount SOOZI Wetzlar version of 1951513. Canadian-produced lenses were manufactured in two serial number ranges: 1477001 to 1477100 and 1580001 to 1581000513.
The first of two Midland batches appeared at 1477xxx, with a red "R" marking at f/4 for use with infrared film119. The second batch at serial number 1580xxx eliminated this marking due to variations in infrared film sensitivity119. Both runs included screw and bayonet versions, with the bayonet serial numbers occurring toward the upper end of the range119. As of today, it is still not possible to determine the exact number of units produced as screw mount lenses (SOOZI) compared to those made as bayonet lenses (SOOZI-M)513. We estimate that approximately 500 units of the screw mount lenses were sold513. Initially, all lenses, including the Wetzlar version, were designed with a screw mount513. The bayonet model was essentially a screw model equipped with a factory bayonet adapter, locked in place with heat-sensitive cement119. A red plastic dot was cemented into a small, milled recess on the side of the lens for orientation with the camera bayonet119. Many "pseudo" screw mount 90 Summicron lenses now in circulation were created by removing the adapter and indicator119.
The Canadian Summicron 90mm f/2 lens was designed for rectilinear guidance and was 10 mm longer and 150 g heavier than the Wetzlar design513. Beneath the depth of field index, there was a small rim shaped like a double ring, from which the oval-shaped tripod mount protruded in a stepped design513. The SOOZI Canada model included a separate, removable lens hood with a clamping screw (HMOOD)513. The HMOOD supplied with this lens was engraved: "Summicron f = 9cm 1:2" and "Ernst Leitz Canada Ltd. Midland"119. For transport, this lens hood could be easily inverted and placed over the lens, where it was secured by a front cap (OQYGO)513. At least three versions of the hood exist, differentiated by engraving and finish variations119.
Typically made of aluminum, the lens hood featured a complex design that combined a circular cross-section with a rectangular guide to prevent shading513. Both the front cap (OQYGO) and the lens hood (HMOOD) were finished with silver lacquer513. Like the Wetzlar version, the lens head was removable; however, it was not compatible with the Visoflex II or III systems513. On the Canadian version, the aperture index was indicated as a fixed dot on the barrel513. The aperture ring was set to full stops, and the aperture scale was engraved on the ring itself instead of the barrel, with the numbering sequence ascending from left to right513.
Interestingly, the lenses made in Canada were not initially imported to England462 It was reported in 1957 that "owing to restrictions on Dollar imports it cannot at present be imported into England by Leitz London for distribution..." in England462. Another note, from 1958 indicated that "Since the last announcement was made we understand that the distribution of this lens in Europe will be undertaken by Leitz Wetzlar. It will not be imported into England on ordinary quota, but the many Leica owners, principally press and feature photographers, who have expressed an interest in it are reminded that supplies will always be obtainable against important licences issued by the Board of Trade..."463.
The six element bayonet mount 90mm f/2 Summicron (Version 1) (SOOZI-M/11127) lens was introduced in 1957542. The removable lens hood HMOOD (12527) was attached to the 90mm f/2 Summicron (Version 1) lens with a clamp screw542. SOOZI-M lenses inspected by James L. Lager were engraved "Leitz Canada" and had a factory-installed special screw-to-bayonet adapter542. It appeared that Leitz did not intend for this adapter to be removed542. Occasionally, a lens was encountered where the adapter had been removed, exposing what was essentially a SOOZI (screw mount lens)542. This type of lens was fitted with the raised red dot common to bayonet lenses542. Leitz Wetzlar also manufactured the SOOZI-M542. These lenses were contained in the serial number range (approximately) 1119001-1119100542. Among them were:
- 1119002, in bayonet mount, that was illustrated in Mr. Lars Netopil's "Rare Leica" book in 2014594.
- 1119066, (likely) in bayonet mount, that was illustrated in Mr. Lars Netopil's "Rare Leica" book in 2014594.
90mm f/2.8 Elmarit (Version 1)
In his "Geburtstage der Leitz-Foto-Konstruktionen ab 1927" book, Wilhelm Albert dated "birthday" of this version of 90mm f/2.8 Elmarit lens ("Objektiv f=9cm 1:2,8 mit E-Messer-Kupplung") as September 5, 1956, and noted Werner Schlapp as designer573.
In early 1959542, the 90mm f/2.8 Elmarit (Version 1) (11129) lens filled the gap between the 90mm f/4 Elmar and 90mm f/2 Summicron lens designs361. Early production models of the lens featured a silver finish (ELRIT-M361), while those manufactured after mid-1968 were supplied with a black anodized finish542 (ELRIM361).
It was a triplet derivative with five elements arranged in three groups, the last two of which were doublets361. The weight is approximately 320 grams361. The lens was designed in Wetzlar and was a true long-focus lens361.
Lens had typical style of the day with black vulcanite band and large scalloped ring361.
The lens featured rare-earth glass in its construction, making it particularly effective for portrait and close-up photography542. It accepted E-39 screw-in filters and was compatible with the IUFOO (12575) lens hood542. The lens had a focusing range that extended to one meter when used with a rangefinder-coupled mount542.
More than 43000 units have been produced, and it is highly likely that the majority were sold361.
There were 70 "Null Serie" lenses within serial number range 1585001 and 1585070 (see Viewfinder, Volume 42, No 1, 2009). One such lens head, 1585036, with pre-set diaphragm, was illustrated on page 11 of Viewfinder Vol 15(1).
Serial numbers range from 1585001 through 2721320361 (or 2721800439). There were 329280 screw mount and bayonet mount lenses produced between 1958 and 1974439. The bayonet mount lens was available in the catalog from 1959361 until 1975542.
The removable 11026 (ELKOO) Elmarit lens head could be attached to the 16464 (OTZFO) universal focusing mount, which was compatible with the Visoflex II, Ila, and III reflex housings542. For additional focusing extension, the Tube 16471 (OTRPO) was available542. When used with the Bellows II, the 11026 lens head offered a focusing range from infinity to life size542.
Leitz Wetzlar also prepared a version of the 90mm f/2.8 Elmarit lens head equipped with a preset diaphragm for use with the OTZFO focusing mount and the Visoflex system542. However, this specific type of Elmarit lens was never actually produced542.
A prototype of this lens, number 0000925, "in a special mount", was illustrated on the page 203 of Paul-Henry van Hasbroeck's "The Leica: A History Illustrating every Model and Accessory" book360 .
90mm f/2 Summicron (Version 2)
Screw mount lens
The screw mount version of 90mm f/2 Summicron (Version 2) (SEOOF513) was produced and featured in Leica brochures starting from September 1958513. This Wetzlar-made lens had serial numbers ranging from 1651001 through 1653500513. Additional production runs in Canada commenced in 1959, covering serial numbers 1680001 to 1682000, 1740001 to 1743500, and 1817001 to 1819000513.
Like its predecessor the screw mount version of 90mm f/2 Summicron (Version 1), this new lens was constructed as a six-lens Gauss type, but the use of new, highly refractive lanthanum glass allowed for much greater correction potential513. As a result, even at full aperture, the lens exhibited remarkable sharpness, contrast, and color correction513.
The screw mount version of 90mm f/2 Summicron (Version 2) was available until March 1963, resulting in a total production of around 490 units513. James L. Lager's research shows that black screw mount SEOOF lenses were prepared on request, and some examples of such lenses were 1680297, 1680310, 1680353542. The black SEOOF lens number 1680353 dated 1959 and showing early knurling was illustrated on the page 75 James L. Lager's "Leica: An Illustrated History - Volume 2 - Lenses - Signed Deluxe Limited Edition" book542.
Bayonet mount lens
In early 1959, the bayonet mount 90mm f/2 Summicron (Version 2) lens was catalogued as model 11123 (SEOOF-M, later SEOOM), starting from serial number 1651001542. The bayonet mount SEOOF-M seemed to have been produced exclusively by Leitz Canada and could occasionally be found with a special screw-to-bayonet adapter542. There were various versions of the bayonet mount 90mm f/2 Summicron (Version 2) lens, with differences in finish, knurling, minimum aperture, direction of diaphragm control, and type of diaphragm noted542.
Subsequently, the last three chrome versions, primarily with bayonet mounts (SEOOM), were released from 1963 onward in separate batches, with serial numbers 1983001 to 1983900, 2025001 to 2026000, and 2068601 to 2069600513.
A prototype in bayonet mount, engraved "C57 0000002 SUMMICRON 1:2/90 LEITZ CANADA", was illustrated in Mr. Lars Netopil's "Museum Leica" book in 2018596.
Differences and similarities of the screw and bayonet mount lenses
Both the screw mount SEOOF and bayonet mount SEOOM featured a rectilinearly guided focus mount marked in both meters and feet513. They also included a lens hood that extended in two stages513.
The differences in design characteristics between the screw mount SEOOF and bayonet mount SEOOM highlighted the complexity of optimizing the mount and ensuring user-friendly operation, which required a lengthy process of trial and error513.
For instance, on the screw mount SEOOF, the step underneath the depth of field index, above which the tripod mount protruded, was characterized by a double bulge situated between the thread mount and the distance setting ring513. In contrast, the bayonet mount SEOOM featured a wide, smooth ring in that location513.
The tripod mount on the screw mount SEOOF was oval and shaped like a step, whereas the bayonet mount SEOOM's tripod mount was round513.
The distance setting ring on the screw mount SEOOF overlapped the depth of field index during focusing513. It had engraved numbers on its sloping tail end corresponding to the distance setting513. On the bayonet mount SEOOM, the distance setting ring did not have a ledge, allowing it to turn freely without overlapping the barrel or the depth of field index513.
Additionally, the distance and aperture rings on the SEOOM were narrower compared to their screw mount SEOOF counterparts513.
Lastly, while the grip molds on the SEOOF were smooth with vertically corrugated surfaces in between, on the bayonet mount SEOOM, the molds were ribbed513.
Black Lenses
Only the bayonet mount versions, SEOOF-M (later SEOOM) and the bayonet mount rangefinder-coupled version ZOOUK-M (later ZOMUK), were manufactured in black94(11122361). However, a Leitz Wetzlar leaflet dated July 1960 clearly states that the SEOOF and SEOOF-M/SEOOM were "available in black anodized finish upon request."94 (at serial number 1680XXX for screw mount SEOOF lenses)119.
Use With Visoflex
Lenses from serial number 1651001 featured a removable lens head (unlike the SOOZI model513) that was usable with the short focusing mount ZOOEP (16463) on the Visoflex II, Visoflex IIa, and Visoflex III models542. Additionally, the QUEPO tube (16474) was available for close-up photography at distances between 3.5 and 2 feet542.
For use on the Visoflex, it was recommended to use the preset diaphragm INVOO (00001)542. However, the availability of the preset diaphragm appeared to have ended in late 1974542.
90mm f/4 Elmar (Version 2)
In late 1963, Leitz Wetzlar introduced 90mm f/4 Elmar (version 2) lens, model number 11830542. There were 3 elements in 3 groups in this lens361. The lens featured a completely redesigned structure and weighted 188 grams30. It was sometimes referred to as "the parallel 90"30. The f-stop scale was engraved on the diaphragm actuating ring, while the distance scale was marked in both feet and meters30.
This lens featured a Midland design361. Thanks to the use of rare-earth optical glasses and modern design techniques, the full aperture performance of 90mm f/4 Elmar (version 2) surpassed that of its predecessor, which utilized a more complex 4-element/3-group construction361.
This lens featured click stops and a dual focusing scale542. The lens was available only in chrome361.
Minimum focusing distance was 100cm361. The filter size was E39361. The weight was approximately 305 grams361.
The lens head could be detached and used with the Visoflex361. Additionally, there was a version of the lens that camera with a finely knurled ring, similar to the standard Elmar361.
Although total production reached about 6,000 units, exact figures were difficult to ascertain because the 11830 and the 11130 were produced in the same batch361.
The serial numbers for both screw mount and bayonet mount ranged from 1913001 through 2125650361.
Availability sheets from Ernst Leitz, Inc. in New York listed the 90mm f/4 Elmar (version 2) as available until January 1969542.
90mm f/2.8 Tele-Elmarit (version 1)
Prototypes
Several prototypes were known:
- A prototype in bayonet mount, engraved "C0000000 C16", was illustrated in Mr. Lars Netopil's "Museum Leica" book in 2018596.
- A prototype number 0001012 was illustrated on the page 179 of Paul-Henry van Hasbroeck's "The Leica: A History Illustrating every Model and Accessory" book 360.
- A prototype number 0001015 was illustrated in Mr. Lars Netopil's "Rare Leica" book in 2014594.
Serial Production
In early 1965, the 90mm f/2.8 Tele-Elmarit (Version 1) was introduced (with serial number 2001001439) in silver finish as a more compact alternative to the 90mm f/2.8 Elmarit (Version 1)233. The announcement on the page 265 of the 6th issue of 1964 of Leica Fotografie suggested that the lens was announced in 1964. This new lens featured a telephoto design, which meant that it was physically shorter than a typically constructed lens of the same focal length233. The front flange of this lens was positioned less than 90mm from the film plane233.
The catalog number was 11800 for chrome and black (from 1966 (or early 1967542)) finishes361.
The 90mm f/2.8 Tele-Elmarit (Version 1) was only slightly longer than a standard 50mm lens361. Measuring only 2 3/8 inches long, the 90mm f/2.8 Tele-Elmarit (Version 1) could fit inside the standard M-Leica ever-ready case542. The lens featured a parallel (non-rotating) focusing mount and accepted E-39 screw-in filters, as well as the 12575 lens hood542. It was designed exclusively for rangefinder coupling at 40 inches and could not be used with the Visoflex system542 because the lens had non-detachable head361.
Its performance did not quite match that of the 90mm f/2.8 Elmarit233. The 90mm f/2.8 Tele-Elmarit (Version 1) exhibited slightly more flare when used wide open compared to the 90mm f/2.8 Elmarit, and its telephoto design affected image quality in the corners of the frame233.
In terms of performance, 90mm f/2.8 Tele-Elmarit (Version 1) offerred slightly higher contrast at full aperture on-axis than its Wetzlar predecessor, 90mm f/2.8 Elmarit (Version 1), but it exhibited some curvature of field, whereas the predecessor maintained a very flat image surface361.
There were 5 elements in 5 groups361. The minimum focusing distance was 100cm361. The chrome lens weighted approximately 355 grams361. The filter size was E39361.
The lens remained in the catalog until 1974361. Approximately 14000 (or 25500439) units were produced, most of which feature a black anodized finish361. The serial numbers range from 2069501 through 2659450361 (or 2491500439).
90mm f/1 Elcan
Ernst Leitz Canada showed 90mm f/1 Elcan lens in 196811. This lens had with C164 optical formula11, was designed by Dr. Walter Mandler, and made by Leitz Canada for the U.S. Navy399.
It was believed that only 10 (ten) 90mm f/1 Elcan lenses were manufactured403. The lens was designed as a fixed-focus system, with setting rings387 for focal distances of 20 meters, 50 meters, 100 meters and infinity399.
Among the lenses were:
- 164-0001 was sold for 228000 Euros including buyer's premium at the 21st WestLicht Camera Auction on May 12, 2012403. The lot was described as "... comes with the special extension tube 4456 for infinity..."403. This lens was illustrated on the page 232 James L. Lager's "Leica: An Illustrated History - Volume 2 - Lenses - Signed Deluxe Limited Edition" book542. The photograph was credited to "Diehl photo"542.
- 164-0002, dated circa 1970, was sold for 54000 Euros including buyer's premium at the 36th Leitz Photographica Auction on June 13, 2020387.
- 164-0005, dated circa 1970, was sold for 132000 Euros including buyer's premium at the "100 years of Leica Camera" WestLicht Camera Auction on May 23, 2014399.
- 164-0006 was illustrated in Mr. Lars Netopil's "Rare Leica" book in 2014594.
- 164-0007, dated 1972, was sold for 84000 Euros including buyer's premium at the 27th WestLicht Camera Auction on June 13, 2015396. The lot was described as "...with stickers 'U.S.NAVY PROPERTY' + 'NAVPHOTOCEN, WASH.,D.C.' and a sticker with contract number '62844-101021'"396.
- 164-0008 was sold together with Leica KE-7A numbered 1294789 for 20900 Great British Pounds at the Christie's auction on June 9, 1994197. The lot was described as "...with applied label Navphotocen, Wash., D.C.5i and U.S. Navy Property and barrel engraved..."197. Later, this lens was auctioned at the Bohnams' "The Fine Leica Centenary Sale" in Hong Kong on November 29, 2014531.
- 164-0010 was auctioned off at Christie's on March 11, 2003. According to the catalogue, "Correspondence with Jim Lager states that the Elcan 90mm. f/1 lens was made for the United States navy for an ASW (anti-submarine warfare) campaign against the Soviet Union during the Cold War.".
- 164-0013 was illustrated in Mr. Lars Netopil's "Museum Leica" book in 2018596. It was in the Leica Archives in December of 2025 (author's note).
90mm f/2.8 Tele-Elmarit-M (Version 2)
Version 2 of 90mm f/2.8 Tele-Elmarit-M (catalog number 11800361, just like its predecessor) was introduced in 1973 and underwent a complete redesign233. Serial numbers reportedly began at 2585501233 and ended at 3453070361. Unlike the previous version, the 90mm f/2.8 Tele-Elmarit (Version 1) with five elements, the new lens featured only four air-spaced elements (in 4 groups361), incorporating new types of glass233.
The 90mm f/2.8 Tele-Elmarit-M (Version 2) was more compact than its predecessor361. This redesign was necessary due to increasing competition that introduced superior models361. Unfortunately, during this period in Leitz's history, cost reduction took precedence over innovation361.
One notable aspect of this lens was that the optical cell was not as easily disassembled as in earlier versions, due to a new, more cost-effective manufacturing process361. While this approach may have been essential for survival, it also indicated that Leitz was losing its position in the global market361.
Minimum focusing distance was 100cm361.
While the mount maintained the same length of 62mm, it was significantly slimmer and considerably lighter, weighing just 225g compared to the 325g of the earlier 90mm f/2.8 Tele-Elmarit (Version 1)233. This lens was produced exclusively in a bayonet mount, available only in black, and included a ribbed focusing ring that matched the new M lenses of that period233.
Prototype
Prototype number 321-020 was illustrated in Mr. Lars Netopil's "Museum Leica" book in 2018596.
Prototype number 0001012 existed360. I t was illustrated on the page 179 of Paul-Henry van Hasbroeck's "The Leica: A History Illustrating every Model and Accessory" book, alongside a prototype 50mm f/1.2 Noctilux lens number 0000728 and an unnumbered prototype of Leica M4360.
Leitz Extender-M 1.5x 11238 Null-Serie
The lens was compatible with a 1.5x extender361, catalog number 11238 (author's note). This extender garnered a certain mythos among collectors, with only a few units appearing in the public domain361.
According to Mr. Lars Netopil's note published in Viewfinder Vol. 29, No. 3, 1996, the rear cap used for this adapter was the standard 14269, while the front cap featured a special design to accommodate the protruding front element. This unique plastic front cap, designated as code 14296, resembled other Leitz designs from that era. Inside the cap, there was a printed sticker that read: "Leitz Extender-M 1.5X for Tele-Elmarit-M f:2.8 / 90mm." For shipping, a special cardboard box was created for the Extender-M, resembling the typical Midland-style boxes of the period. It was a two-color red and white cardboard box that featured an illustration of the Extender-M. Additionally, a label identical to the one found inside the front lens cap was printed on the exterior of the box, along with the device's order code, 11238.
Some of the known ones were:
- Prototype number 395-002 was illustrated in Mr. Lars Netopil's "Museum Leica" book in 2018596.
- 30515XX mentioned by Mr. Lars Netopil in Viewfinder Vol. 29, No. 3, 1996.
- 3051601 mentioned by Mr. Lars Netopil and illustrated in Viewfinder Vol. 29, No. 3, 1996. This adapter was part of a German collection in 1996.
- 3051602 was illustrated in Mr. Lars Netopil's "Rare Leica" book in 2014594.
- 3051603 was illustrated in Mr. Lars Netopil's "Museum Leica" book in 2018596.
- 3051612 was offered for sale by Setadel Studios in December of 2025.
- 3051614 mentioned by Mr. Lars Netopil in Viewfinder Vol. 29, No. 3, 1996. The same adapter was featured in Randol W. Hooper's "Leitz Extender-M" article published in Viewfinder Vol. 28, No. 3, 1995.
- 3051628 mentioned by Mr. Lars Netopil in Viewfinder Vol. 29, No. 3, 1996. This adapter was sold to Leicatime Shop in Rome some time prior to 1996. The same adapter was featured in Paolo Ascenzi's note to the editor of Viewfinder on October 10, 1995.
Lens Hoods
In 1975, a special screw-in collapsible rubber hood (11250542) was introduced, which was quite practical as it could be left attached to the lens during transport233. However, the deep metal hood, catalog number 12575 (formerly IUFOO), proved to be more durable, significantly more effective in side lighting, and very compact when reversed for storage233. The reversed hood could be covered by a clip-on plastic cap, catalog number 14033233.
Special editions
There was a special limited edition for the 70th anniversary with "1913-1983" engraving361.
Closing Remarks
The lens has sold exceptionally well, with approximately 25000 units allocated361.
Most 90mm f/2.8 Tele-Elmarit-M (Version 2) lenses were produced by Leitz Canada; however, lenses manufactured between approximately 1988 and 1989 bore the engraving "Germany."542 The 90mm f/2.8 Tele-Elmarit-M (Version 2) was last listed in the catalog in 1990542.
90mm f/2 Summicron-M (Version 3)
The version 3 of the 90mm f/2 Summicron-M was introduced at Photokina 1980493 (shipping began May 1981493), featuring a redesigned mount that significantly reduced its weight to 460 grams361. This lens consisted of five elements, with two of the surfaces being flat, which lowered production costs but also limited the potential for additional optical corrections361.
The lens was manufactured in Midland361. This design emerged during a time when Leitz was beginning to lose faith in the long-term prospects of its photographic division361.
There were 5 elements in 4 groups361. The minimum focusing distance was 100cm361. The weight was 475 grams for the black and 690 grams for the chrome version361.
2 variants:
- Early models used E49 filters and were equipped with a lens hood which obscured the aperture scale when collapsed124. Serial numbers of this variant were 3163071 - 3177201361.
- Later (from 1982542) lenses took E55 filters and were fitted with a "non-obscuring" lens hood124. This version was shorter in its overall length361. Serial numbers of this variant were 3177201 - 3722802361.
The catalog numbers were 11136 for the black and 11137 for the chrome versions361. The chrome version came on the market (from number 3643276) in 1993361 (or 1992542).
Lens hood
Two types of lens hood were made: the early one with a small ring at the front and later a fully cylindrical lens hood361.
Closing Remarks
The lens remained in the catalog until 1998361. The serial numbers ranged from 3163071 through 3722802361.
90mm Elmarit-M f/2.8 (Version 2)
In 1985, Dr. Wolfgang Vollrath identified the 90mm Elmarit-R f/2.8 lens as the most suitable candidate for redesigning for the M-camera361. The 90mm Elmarit-M f/2.8 (Version 2) replaced the 90mm f/2.8 Tele-Elmarit-M (Version 2) in June 1989542.
There were 4 elements in 4 groups147. The 90mm Elmarit-M f/2.8 (Version 2) accepted 46mm screw-in filters and included a built-in collapsible lens hood542. The minimum focusing distance was 100cm361.
This lens was known for its remarkable clarity in reproducing fine details, primarily due to the absence of coma361. At maximum aperture, it delivered high-contrast, high-definition images from the center to the corners361. When stopped down, the image quality improved further, and the lens performed exceptionally well for close-ups, matching its performance at infinity361.
This lens had no cemented surfaces361. Instead, various types of coating layers were applied to the individual lens surfaces to achieve the desired effect361.
The catalog number for black version was 11807, chrome version (available from 1997) was 11808, and titanium version was 11899361.
The weight was approximately 410 grams for the black version and 560 grams for the chrome version361.
The lens remained in the catalog until 2008 and sold approximately 25000 units361.
90mm f/2 APO-Summicron-M ASPH
The 90mm f/2 APO-Summicron-M ASPH was developed by Horst Schröder361. The 90mm f/2 APO-Summicron-M ASPH was the first-ever aspheric Leica M lens with apochromatic correction215. It was an ideal choice for photojournalism and portrait photography, offering a lightweight and easy-to-handle design that was more optically advanced than its predecessor, 90mm f/2 Summicron-M (Version 3) (11136)215.
The 90mm f/2 APO-Summicron-M ASPH was available in February 1998, with a suggested retail price of 1995 USD215. The catalog numbers were 11884 for the black aluminum anodized version, 11885 for the brass silver chrome version, 11632 for the titanium version, and 11636 for the rare limited edition black paint version361 introduced in 2003 in the quantity of 1000 lenses (see p.46 7/2003 of Leica Fotografie International). The serial numbers began from 3815625361.
This lens featured five elements arranged in five groups, including two made from high-refractive glass and two with high partial anomalous dispersion215. This sophisticated optical design ensured excellent contrast and ultra-sharp definition while maintaining the same weight of 18 ounces as 90mm f/2 Summicron-M (Version 3) (11136)215. The "Safari" finished variant of this lens was introduced in 2020 (see p.88 3/2020 Leica Fotografie International magazine).
This lens was among the best-corrected lenses in the M line, delivering high-contrast, high-definition images even at maximum aperture361. Overall, it performed superbly across the entire sensor area at all apertures361. The only drawback of the 90mm f/2 APO-Summicron-M ASPH was its performance at closer distances (0.7 to 2 meters), where some softness and loss of contrast could have occurred361. To achieve optimal quality in this distance range, it was advisable to stop down to f/4361.
The minimum focusing distance was 100 cm361.
A small initial batch was produced in Canada, but since then, all lenses were manufactured in Germany361.
The weight was approximately 500 grams for the black aluminum anodized and brass silver chrome versions, while the titanium version weighted around 660 grams361. The filter size was E55, and the lens featured a built-in retractable lens hood361.
Special Editions
The 90mm f/2 APO-Summicron-M ASPH lens in black paint finish (catalog number 11636361) was introduced in 2003, following numerous customer requests to match the finish of the LHSA Black Paint camera and the new-at-the-time Leica MP of 2003 camera254. Production of this lens was limited to 1000 units worldwide254. Owners of these black paint finish cameras could have then created a three-lens outfit comprising 35mm, 50mm, and 90mm lenses, all in the same black paint finish254. Deliveries were set to begin in October 2003, with a price of 2295.00 USD254.
For a long time, there was no practical solution for enabling macro photography with Leica M cameras (excluding the Visoflex option)361. Leica filled this gap with the 90mm f/4 Macro-Elmar-M lens361. When used with its Macro-Adapter, the lens could focus down to 50 cm, achieving a magnification ratio of 1:3361. However, there was a risk that 90mm f/4 Macro-Elmar-M lens might have been categorized solely as a macro lens361. In reality, it was a compact, high-performance lens suitable for reportage-style photography, where its superior definition could have added a new dimension of gritty realism to images361.
When collapsed, the 90mm f/4 Macro-Elmar-M extended only 4 cm from the body and 6 cm when extended (truly a telephoto construction)361.
At maximum aperture, the lens delivered high-contrast, high-definition imagery across the full sensor frame, with exceptionally good edge contrast and very sharp subject outlines361. Its performance matched and even exceeded the recording capabilities of the Leica M9 Monochrom and most AgX microfilm emulsions361.
The lens was available from 1st October, 2003 (or 2004361) in black anodized or silver chrome finish257. The Macro-Adapter came in black finish only257.
The catalogue numbers were:
- 11633 for the black anodized version361
- 11634 for the silver chrome version361
- 14409 for the macro-adapter361
- 11629 for the black anodized lens + macro-adapter361
- 11639 for the silver chrome lens + macro-adapter361
Prices at the introduction were 1295 USD for the lens and 845 USD for the Macro-Adapter257.
Serial numbers started from 3954776361.
There were 4 elements in 4 groups361.
Minimum focusing distance was 77cm with lens without adapter, and 50-76 cm with the adapter361.
90mm f/2.5 Summarit-M
90mm f/2.5 Summarit-M (catalog number 11646361 for black anodized version) was introduced in 2007285.
The 90mm f/2.5 Summarit-M was a highly portable lens361.
At maximum aperture, the lens produced medium to high-contrast images with remarkable detail definition361. All new Leica lenses featured an all-black design for the rear part of the lens mount, which helped reduce flare361. In fact, the level of flare produced by the 90mm f/2.5 Summarit-M was quite low361.
There were 5 elements in 4 groups361. The minimum focusing distance was 100cm361. Weight was 360 grams361. There was a non-rotating internal thread for screw-on E46-sized filters361. Lens had an external thread with stop for lens hood361. Protection ring for external thread was included in delivery361. Lens was 6-bit coded361. Focusing ring was rubberized361.
90mm f/2.2 Thambar-M
The 90mm f/2.2 Thambar-M, the re-issue of the original screw mount 1935 90mm f/2.2 Thambar (TOODY), was released on October 17, 2017315.
Like its predecessor, TOODY, the 90mm f/2.2 Thambar-M was a soft-focus lens that created beautifully romantic images with a unique bokeh effect, achieved through undercorrected spherical aberrations315. Shooting wide open at f/2.2 or f/2.4 enhanced this soft-focus effect315. Additionally, the included center spot filter intensified the soft-focus glow even further315.
So, what were the differences between the TOODY and 90mm f/2.2 Thambar-M? Fortunately, not much had changed in terms of performance, as both lenses yielded similar results315. However, the 90mm f/2.2 Thambar-M offered several advantages over the original315. Firstly, the TOODY was regarded as a collector’s item which made good, clean examples quite rare315. Secondly, the 90mm f/2.2 Thambar-M featured lens coatings that were absent in the original model, resulting in deeper contrast and sharper photos315. 90mm f/2.2 Thambar-M also offered better handling and calibration with rangefinder cameras, along with 6-bit coding315.
The 90mm f/2.2 Thambar-M arrived in a luxurious presentation box315. It featured a shiny black paint finish, complemented by a matching lens cap and hood, a center spot filter, and an elegant leather lens pouch315. Unfortunately, the new center spot filter and hood were not compatible with TOODY315.
90mm f/1.5 Summilux ASPH
The 90mm f/1.5 Summilux ASPH was introduced in 2020518. This lens was based on 75mm f/1.25 Noctilux ASPH518.
At a focusing distance of 1 meter, the wide-open lens provided a depth of field of approximately 11mm518. With its fully open aperture, the lens produced a smooth bokeh effect, featuring no hard edges between the sharp and defocused areas of the image518.
The design of 90mm f/1.5 Summilux ASPH was based on the 75mm f/1.25 Noctilux ASPH, from which it adopted the body style518. It consisted of eight elements, two of which had aspheric surfaces, arranged into six groups518. A floating element was included to ensure consistently high imaging performance across all distances518.
Interestingly, there was a straightforward reason why the 90mm f/1.5 Summilux ASPH was not designed to have an even wider aperture: in a 90mm lens with an M bayonet mount, almost all of the available space was occupied by the rear lens element518. This made it impractical, from an engineering perspective, to create a lens with a larger maximum aperture518.
While this camera-lens combination remained manageable, the 1010-gram 90mm f/1.5 Summilux ASPH did contribute to a heavier overall package than typically associated with Leica's M cameras518. Additionally, the lens body extended into the field of vision of both the rangefinder viewfinder and the lens itself518.