Carl Zeiss Ultron 50mm F/1.8
Standard prime lens • Film era • Discontinued
- Announced:
- · 1968
- Production status:
- ● Discontinued
- Country of design:
- · FRG (Federal Republic of Germany)
- Original name:
- · Carl Zeiss Ultron 1,8/50
- Class:
- · Fast full-frame standard prime lens
- System:
- · Icarex (1966)
Sample photos (39)
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Specification
| Optical design: | |
| 35mm full frame | |
| 50mm | |
| F/1.8 | |
| 7 elements in 6 groups | |
| Icarex [48mm] | |
| M42 [45.5mm] | |
| 46.8° (35mm full frame) | |
| Diaphragm mechanism: | |
Diaphragm type: | Automatic |
Aperture control: | Aperture ring (Manual settings only) |
| 5 (five) | |
| Focusing: | |
| 0.45m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 185g (mount not specified) | |
| <No data> | |
| Accessories: | |
| Bayonet-type 50 | |
| 20.0718 - Screw-type round | |
| Not available |
Source of data
- Own research.
From the editor
The lens was developed by A.W. Tronnier and manufactured by Carl Zeiss at the Optische Werke Voigtländer for Zeiss Ikon Icarex 35/35S SLR cameras with the Bayonet Mount (BM) and M42 Thread Mount (TM), and the Zeiss Ikon SL706 camera with TM. Computer-aided design (Voigtlander used computers for optical calculations since the middle 1950's). It is based on the double Gauss optical design but has concave front element which makes this lens unique. According to Tronnier’s report, tested resolution was 380 lines per mm when typical film resolution was 110 lines per mm then. The lens was patented on October 12, 1971 and went out of production in 1972.
The aperture changes completely smoothly, without clicks.
The next incarnation - Color-Ultron 50mm F/1.8 - had conventional (slightly convex) front element and was made for Rolleiflex SL35 series SLR cameras.
Notes
- Filters, in bayonet mount fitting B50, fit all ICAREX lenses from 35mm to 135mm. Lenses up to 90mm have an additional S56 screw mount. Flexible lens hood S56 was available for all ICAREX lenses from 35mm to 90mm.
Other standard prime lenses in the Icarex system
| ■Icarex mount (2) | |||||||||
| Carl Zeiss Tessar 50mm F/2.8 | A | 4 - 3 | 0.45m | B50 | 1966 ● | ||||
| Zeiss Ikon Color-Pantar 50mm F/2.8 | A | 3 - 3 | 1.00m | B50 | 1966 ● | ||||
Lenses with similar focal length
| ■M42 mount (117) | |||||||||
| Asahi SMC Takumar 55mm F/2 [37109] | A | 6 - 5 | 0.45m | ⌀49 | 1973 ● | ||||
| Asahi SMC Takumar 50mm F/1.4 [37908] | A | 7 - 6 | 0.45m | ⌀49 | 1972 ● | ||||
| Asahi Super-Multi-Coated Takumar 55mm F/1.8 [37101, 37104, 37106] | A | 6 - 5 | 0.45m | ⌀49 | 1971 ● | ||||
| Asahi Auto-Takumar 55mm F/1.8 [332] | S | 6 - 5 | 0.55m | ⌀46 | 1958 ● | ||||
| Asahi Auto-Takumar 55mm F/2 [341, 34100] | S | 6 - 5 | 0.55m | ⌀46 | 1958 ● | ||||
| Asahi Takumar 55mm F/2.2 | P | 5 - 5 | 0.55m | ⌀46 | 1957 ● | ||||
| Asahi Auto-Takumar 55mm F/2.2 | S | 6 - 5 | 0.55m | ⌀46 | 1961 ● | ||||
| Asahi Auto-Takumar 55mm F/1.9 | S | 6 - 5 | 0.55m | ⌀46 | 1958 ● | ||||
| Asahi Super-Takumar 50mm F/1.4 [378, 37800, 37801] | A | 7 - 6 | 0.45m | ⌀49 | 1965 ● | ||||
| Asahi Super-Takumar 50mm F/1.4 [358, 35800] | A | 8 - 6 | 0.45m | ⌀49 | 1964 ● | ||||
| Asahi Super-Multi-Coated Takumar 50mm F/1.4 [37902] | A | 7 - 6 | 0.45m | ⌀49 | 1971 ● | ||||
| Asahi Takumar 55mm F/1.8 | P | 6 - 5 | 0.55m | ⌀46 | 1958 ● | ||||
| Asahi Auto-Takumar 55mm F/1.8 [345] | A | 6 - 5 | 0.45m | ⌀49 | 1960 ● | ||||
| Asahi Super-Takumar 55mm F/1.8 [345-2, 345-5, 33450, 34520] | A | 6 - 5 | 0.45m | ⌀49 | 1962 ● | ||||
| Asahi Super-Takumar 55mm F/1.8 [371, 37100, 37101, 37104, 37106] | A | 6 - 5 | 0.45m | ⌀49 | 1965 ● | ||||
| Asahi SMC Takumar 55mm F/1.8 [37108] | A | 6 - 5 | 0.45m | ⌀49 | 1972 ● | ||||
| Asahi Super-Takumar 55mm F/2 [345-1, 345-6, 345-3] | A | 6 - 5 | 0.45m | ⌀49 | 1962 ● | ||||
| Asahi Super-Takumar 55mm F/2 [37102, 37103, 37107] | A | 6 - 5 | 0.45m | ⌀49 | 1965 ● | ||||
| Asahi Super-Takumar 50mm F/1.4 for SL [37802] | A | 7 - 6 | 0.45m | ⌀49 | 1969 ● | ||||
| Chinon Auto 55mm F/1.4 [Multi-Coated] akaArgus Auto-Cintar 55mm F/1.4 akaAuto-Alpa 55mm F/1.4 Multi-Coated akaGAF Auto 55mm F/1.4 akaPorst Color Reflex Auto 55mm F/1.4 MC G akaRevuenon Auto 55mm F/1.4 [Multi-Coated] | A | ? - ? | 0.50m | ⌀55 | ● | ||||
| Chinon Auto 55mm F/1.7 [Multi-Coated] akaArgus Auto-Cintar 55mm F/1.7 akaEdixon Auto 55mm F/1.7 akaHanimar 55mm F/1.7 akaReflecta Auto 55mm F/1.7 akaRevuenon Auto 55mm F/1.7 akaWeltblick Auto Super 55mm F/1.7 | A | 6 - 4 | 0.50m | ⌀52 | ● | ||||
| Cosina Cosinon Auto 55mm F/2.8 Type 2 akaCarenar 55mm F/2.8 akaExaktar Auto 55mm F/2.8 akaPetri C.C Auto 55mm F/2.8 akaPorst Color Reflex Auto 55mm F/2.8 D akaRevuenon Auto 55mm F/2.8 | A | 4 - 3 | 0.90m | ⌀49 | ● | ||||
| Cosina Cosinon Auto 50mm F/1.9 akaVivitar Auto 50mm F/1.9 | A | 6 - 4 | 0.50m | ⌀49 | ● | ||||
| Cosina Cosinon Auto 55mm F/2.8 Type 1 akaEdixa Auto 55mm F/2.8 akaPorst Color Reflex Auto 55mm F/2.8 akaRevuetar Auto 55mm F/2.8 akaSuper Carenar 55mm F/2.8 akaVivitar Auto 55mm F/2.8 | A | 4 - 3 | 0.90m | ⌀49 | 1968 ● | ||||
| Cosina Cosinon Auto 50mm F/1.8 akaEdixa Auto 50mm F/1.8 akaExaktar Auto 50mm F/1.8 akaKobanar Auto 50mm F/1.8 akaPorst Color Reflex Auto 50mm F/1.8 akaRevuenon Auto 50mm F/1.8 akaVivitar Auto 50mm F/1.8 | A | 6 - 4 | 0.50m | ⌀49 | 1970 ● | ||||
| Cosina Cosinon Auto 50mm F/1.7 [MC] akaPorst Color Reflex Auto 50mm F/1.7 akaSuper Carenar 50mm F/1.7 akaVivitar Auto 50mm F/1.7 [VMC] | A | 6 - 4 | 0.50m | ⌀49 | 1970 ● | ||||
| Cosina Cosinon Auto 55mm F/1.4 [MC] akaExaktar Auto 55mm F/1.4 akaKobanar Auto 55mm F/1.4 akaPanorama Auto 55mm F/1.4 akaPorst Color Reflex Auto 55mm F/1.4 [MC] [G] akaRevuenon Auto 55mm F/1.4 akaSuper Carenar 55mm F/1.4 akaSuper Reflecta 55mm F/1.4 akaVivitar Auto 55mm F/1.4 VMC | A | 7 - 5 | 0.50m | ⌀55 | 1968 ● | ||||
| Cosina Cosinon Auto 55mm F/2.1 akaVivitar Auto 55mm F/2.1 | A | 4 - 4 | 0.60m | ⌀49 | ● | ||||
| Cosina Cosinon Auto 55mm F/1.2 MC Type 1 | A | 7 - 6 | 0.50m | ⌀55 | ● | ||||
| Cosina Cosinon Auto 55mm F/1.2 MC Type 2 | A | 7 - 5 | 0.50m | ⌀55 | ● | ||||
| Cosina Cosinon Auto 55mm F/1.8 | A | ? - ? | 0.50m | 1968 ● | |||||
| Fuji Photo Film [EBC] Fujinon 55mm F/1.8 | A | 6 - 4 | 0.45m | ⌀49 | 1970 ● | ||||
| Fuji Photo Film Fujinon 55mm F/2.2 | A | 4 - 4 | 0.60m | ⌀49 | 1975 ● | ||||
| Fuji Photo Film Fujinon 55mm F/1.6 | A | 5 - 4 | 0.60m | ⌀49 | 1978 ● | ||||
| Fuji Photo Film [EBC] Fujinon 50mm F/1.4 | A | 7 - 6 | 0.45m | ⌀49 | 1970 ● | ||||
| Mamiya/Sekor Auto 50mm F/2 | A | 6 - 4 | 0.50m | ⌀52 | 1966 ● | ||||
| Mamiya/Sekor SX Auto 50mm F/2 | A | 6 - 4 | 0.45m | ⌀52 | 1974 ● | ||||
| Mamiya/Sekor Auto 55mm F/1.8 | A | 6 - 4 | 0.50m | ⌀52 | 1966 ● | ||||
| Mamiya/Sekor SX Auto 55mm F/1.4 | A | 7 - 5 | 0.45m | ⌀52 | 1974 ● | ||||
| Mamiya/Sekor SX Auto 55mm F/1.8 | A | 6 - 5 | 0.45m | ⌀52 | 1974 ● | ||||
| Mamiya/Sekor Auto 50mm F/2.8 | A | 4 - 3 | 0.50m | ⌀52 | ● | ||||
| Mamiya/Sekor Auto 55mm F/1.4 | A | 7 - 5 | 0.50m | ⌀55 | ● | ||||
| Meyer-Optik Gorlitz Domiplan 50mm F/2.8 akaPentacon Orestor 50mm F/2.8 akaPentaflex-Color 50mm F/2.8 | A | 3 - 3 | 0.75m | ⌀49 | 1961 ● | ||||
| Meyer-Optik Gorlitz Oreston 50mm F/1.8 | A | 6 - 4 | 0.33m | ⌀49 | 1965 ● | ||||
| Meyer-Optik Gorlitz Primotar 50mm F/2.8 | P | 4 - 3 | 0.60m | ⌀40.5 | 1959 ● | ||||
| Olympus G.Zuiko Auto-S 50mm F/1.4 for FTL | A | 7 - 6 | 0.40m | ⌀49 | 1970 ● | ||||
| Olympus F.Zuiko Auto-S 50mm F/1.8 for FTL | A | 6 - 5 | 0.40m | ⌀49 | 1970 ● | ||||
| P. Angenieux Paris 50mm F/1.5 Type S21 | M | 6 - 4 | 1953 ● | ||||||
| Pentacon 50mm F/1.8 auto / electric Multi Coating akaRevuenon Auto 50mm F/1.8 Multi Coating | A | 6 - 4 | 0.33m | ⌀49 | ● | ||||
| Pentacon 50mm F/1.8 auto / electric akaPentaflex Auto-Color 50mm F/1.8 | A | 6 - 4 | 0.33m | ⌀49 | 1971 ● | ||||
| Kuribayashi C.C. Petri Orikkor 50mm F/2 | P | 7 - 4 | 0.50m | ⌀49 | 1959 ● | ||||
| Petri C.C Auto 55mm F/1.8 | A | 6 - 4 | 0.60m | ⌀52 | 1973 ● | ||||
| Petri C.C Auto 55mm F/1.7 akaPromatic C.C Auto 55mm F/1.7 | A | 6 - 4 | 0.60m | ⌀52 | 1976 ● | ||||
| Petri C.C Auto 50mm F/1.7 | A | 6 - 4 | 0.60m | ⌀49 | 1976 ● | ||||
| Petri C.C Auto 45mm F/2.8 | A | 4 - 3 | 0.80m | ⌀49 | 1976 ● | ||||
| Petri C.C Auto 55mm F/1.4 | A | 7 - 5 | 0.60m | ⌀55 | 1973 ● | ||||
| Ricoh Rikenon Auto 50mm F/1.7 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Ricoh Rikenon Auto 50mm F/1.7 EE | A | ? - ? | 0.50m | ● | |||||
| Ricoh Rikenon Auto 55mm F/2.8 | A | 4 - 3 | 0.90m | ● | |||||
| Ricoh Rikenon Auto 50mm F/2.8 | A | 4 - 3 | 0.80m | ⌀52 | ● | ||||
| Ricoh Rikenon Auto 50mm F/2 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Ricoh Rikenon Auto 50mm F/1.4 EE | A | ? - ? | 0.50m | ● | |||||
| Ricoh Rikenon Auto 55mm F/1.8 | A | ? - ? | 0.50m | ⌀52 | ● | ||||
| Ricoh Rikenon Auto 55mm F/1.4 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Schneider-Kreuznach Xenar 50mm F/2.8 | A | 4 - 3 | 0.50m | ⌀49 | ● | ||||
| Schneider-Kreuznach Xenon 50mm F/1.9 Type 1 | A | 6 - 4 | 2.5 ft. | S.VI | 1952 ● | ||||
| Schneider-Kreuznach Xenon 50mm F/1.9 Type 3 | A | 6 - 4 | 0.50m | ⌀49 | 1966 ● | ||||
| Industar-61 L/Z 50mm F/2.8 [MC] akaИНДУСТАР-61Л/З 50mm F/2.8 akaИНДУСТАР-61Л/З-МС 50mm F/2.8 | P | 4 - 3 | 0.30m | ⌀49 | ● | ||||
| Helios-77M-4 50mm F/1.8 MC akaГЕЛИОС-77М-4 50mm F/1.8 МС | A | 6 - 4 | 0.45m | ⌀52 | 1991 ● | ||||
| Zenitar-M 50mm F/1.7 [MC] akaЗЕНИТАР-М 50mm F/1.7 [МС] | A | 6 - 5 | 0.45m | ⌀52 | 1977 ● | ||||
| Zenitar-M 50mm F/1.9 MC akaЗЕНИТАР-М 50mm F/1.9 МС | A | 6 - 4 | 0.45m | ⌀52 | 1991 ● | ||||
| Industar-61M 50mm F/2.8 akaИНДУСТАР61-М 50mm F/2.8 | A | 4 - 3 | 0.40m | ⌀52 | ● | ||||
| Zenitar-ME1 50mm F/1.7 MC akaЗЕНИТАР-МЕ1 50mm F/1.7 МС | A | 6 - 5 | 0.45m | ⌀52 | 1980 ● | ||||
| Zenitar 50mm F/2 MC | A | 6 - 4 | 0.35m | ⌀46 | 1995 ● | ||||
| Era-6M 50mm F/1.5 Type 2 akaЭРА-6М 50mm F/1.5 | A | 6 - 5 | 0.50m | ⌀58 | 1977 ● | ||||
| Era-6M 50mm F/1.5 Type 1 akaЭРА-6М 50mm F/1.5 | A | 6 - 5 | 0.30m | ⌀58 | 1972 ● | ||||
| Jupiter-Super-M1 50mm F/2 MC | A | 6 - 4 | 0.40m | ⌀52 | 1998 ● | ||||
| Steinheil Munchen Cassar S 50mm F/2.8 | M | 3 - 3 | 0.90m | ⌀40.5 | 1955 ● | ||||
| Steinheil Munchen Cassarit 50mm F/2.8 | P | 3 - 3 | 0.50m | ● | |||||
| Steinheil Munchen Culminar 50mm F/2.8 | P | 4 - 3 | 0.50m | ● | |||||
| Steinheil Munchen Auto-D-Quinon 55mm F/1.9 for Edixa-MAT | A | 6 - 4 | 0.35m | ⌀49 | ● | ||||
| Steinheil Munchen Quinon 55mm F/1.9 Optigon-Automatic Flash | S | 6 - 4 | 0.50m | ⌀49 | ● | ||||
| Steinheil Auto-Cassaron 50mm F/2.8 Type 2 for Edixa | A | 3 - 3 | 0.80m | ● | |||||
| Steinheil Munchen Cassarit 50mm F/2.8 for Edixa | A | 3 - 3 | 0.80m | ● | |||||
| Steinheil Auto-Cassaron 50mm F/2.8 Type 2 | A | 3 - 3 | 0.80m | ● | |||||
| Steinheil Auto-Cassaron 50mm F/2.8 Type 1 | A | 3 - 3 | 0.80m | ● | |||||
| Tomioka Yashinon Auto 55mm F/1.2 | A | 7 - 6 | 0.50m | ⌀55 | 1970 ● | ||||
| Tomioka Chinon Auto 55mm F/1.2 | A | 7 - 6 | 0.50m | ⌀55 | 1970 ● | ||||
| Tomioka Yashinon DS-M Auto 55mm F/1.2 | A | 7 - 6 | 0.50m | ⌀55 | 1973 ● | ||||
| Tomioka Cosinon Auto 55mm F/1.2 | A | 7 - 6 | 0.50m | ⌀55 | 1970 ● | ||||
| Tomioka Revuenon Auto 55mm F/1.2 | A | 7 - 6 | 0.50m | ⌀55 | 1970 ● | ||||
| Tomioka Tominon Auto 55mm F/1.2 | A | 7 - 6 | 0.50m | ⌀55 | 1970 ● | ||||
| Tomioka Tominon C. 50mm F/2 | S | 6 - 4 | 0.55m | ⌀46 | ● | ||||
| Tomioka Chinon Auto 55mm F/1.4 akaBeroflex Ultra Auto 55mm F/1.4 akaSuper Reflecta 55mm F/1.4 akaTomioka Revuenon Auto 55mm F/1.4 | A | 7 - 5 | 0.50m | ⌀55 | ● | ||||
| Vivitar Auto 55mm F/1.2 VMC (s/n 9xxxxxxx) | A | 7 - 5 | 0.50m | ⌀55 | ● | ||||
| Yashica Yashinon-DX Auto 50mm F/1.4 | A | 7 - 6 | 0.50m | ⌀55 | ● | ||||
| Yashica Yashinon DS-M Auto 50mm F/1.7 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Yashica Yashinon Auto 55mm F/1.8 | A | 6 - 5 | 0.50m | ● | |||||
| Yashica Yashinon-DS Auto 50mm F/1.7 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Yashica Yashinon Auto 50mm F/2 | S | 6 - 4 | 0.55m | ⌀46 | 1961 ● | ||||
| Yashica Yashinon-DS Auto 50mm F/1.4 | A | 7 - 6 | 0.50m | ⌀55 | ● | ||||
| Yashica Yashinon-DX Auto 50mm F/1.7 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Yashica Yashinon-DX Auto 50mm F/2 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Yashica Yashinon-DS Auto 50mm F/1.9 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Yashica Yashinon DS-M Auto 50mm F/1.4 | A | 7 - 6 | 0.50m | ⌀55 | ● | ||||
| Yashica Yashinon-DS Auto 50mm F/2 | A | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Risespray 50mm F/1.7 SLR | M | 6 - 5 | 0.50m | ⌀52 | ● | ||||
| Carl Zeiss Classic Planar T* 50mm F/1.4 ZE / ZF.2 / ZK / ZS | A | 7 - 6 | 0.45m | E58 | 2006 ● | ||||
| Carl Zeiss Planar [HFT] 50mm F/1.8 akaIfbagon 50mm F/1.8 akaOpton Oberkochen Pl HFT 50mm F/1.8 akaRollei-HFT Planar 50mm F/1.8 akaVoigtlander Color-Ultron 50mm F/1.8 | A | 7 - 6 | 0.45m | E49 | 1970 ● | ||||
| Carl Zeiss Jena DDR Pancolar 55mm F/1.4 | A | 7 - 5 | 0.39m | E58 | 1966 ● | ||||
| Carl Zeiss Jena DDR Pancolar 50mm F/1.8 "Zebra" [I] | A | 6 - 4 | 0.35m | E49 | 1965 ● | ||||
| Carl Zeiss Jena DDR Pancolar 50mm F/1.8 "Zebra" [II] | A | 6 - 5 | 0.35m | E49 | 1967 ● | ||||
| Carl Zeiss Jena DDR Pancolar 50mm F/1.8 auto / electric MC | A | 6 - 5 | 0.35m | E49 | 1976 ● | ||||
| Carl Zeiss Jena DDR Pancolar 50mm F/2 | A | 6 - 4 | 0.50m | E49 | 1960 ● | ||||
| Carl Zeiss Jena DDR Tessar 50mm F/2.8 [T] Type 2 | S | 4 - 3 | 0.50m | E49 | 1955 ● | ||||
| Carl Zeiss Jena DDR Tessar 50mm F/2.8 [T] Type 1 | P | 4 - 3 | 0.50m | E49 | 1954 ● | ||||
| Carl Zeiss Jena DDR Tessar 50mm F/2.8 Type 4 | A | 4 - 3 | 0.35m | E49 | 1966 ● | ||||
| ■Interchangeable mount (1) | |||||||||
| MS Optics MS-Mode-S 50mm F/1.3 Dualsystem (200 units) | M | 5 - 4 | 1.00m | ⌀49 | 2006 ● | ||||