Yashica Yashinon-DX Auto 50mm F/1.4

Standard prime lens • Film era • Discontinued

Announced:
· No data
Production status:
● Discontinued
Country of design:
· Japan
Original name:
· YASHICA AUTO YASHINON-DX 1:1.4 f=50mm
Class:
· Ultra-fast full-frame standard prime lens
System:
· Yashica M42 (1961)

Model history (3)

■Yashica Yashinon-DX Auto 50mm F/1.4	A	7 - 6	0.50m	⌀55	●
■Yashica Yashinon-DS Auto 50mm F/1.4	A	7 - 6	0.50m	⌀55	●
■Yashica Yashinon DS-M Auto 50mm F/1.4	A	7 - 6	0.50m	⌀55	●

Specification

Optical design:
Maximum format:	35mm full frame
Focal length:	50mm
Speed:	F/1.4
Lens construction:	7 elements in 6 groups (Double Gauss derivative)
Mount and Flange focal distance:	M42 [45.5mm]
Diagonal angle of view:	46.8° (35mm full frame)
Diaphragm mechanism:
Diaphragm type:	Automatic
Aperture control:	Aperture ring (Manual settings only)
Number of blades:	6 (six)
Focusing:
Closest focusing distance:	0.50m
Magnification ratio:	<No data>
Focusing modes:	Manual focus only
Manual focus control:	Focusing ring
Physical characteristics:
Weight:	304g
Maximum diameter x Length:	⌀?×56mm
Accessories:
Filters:	Screw-type 55mm
Lens hood:	<No data>
Teleconverters:	Not available

Source of data

Own research.

Notes

Because of the special construction of the mirror, the following Yashinon interchangeable lenses cannot be mounted on the Yashica Electro AX camera: Yashinon-DX 21mm F/3.3, Yashinon-DX 28mm F/2.8, Yashinon-DX 50mm F/2, F/1.7, F/1.4. All other lenses can be used most effectively.

Other standard prime lenses in the Yashica M42 system

■M42 mount (12)
Yashica Yashinon-DX Auto 50mm F/2	A	6 - 5	0.50m	⌀52	●
Yashica Yashinon-DS Auto 50mm F/2	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/1.9	A	6 - 5	0.50m	⌀52	●
Yashica Yashinon DS-M Auto 50mm F/1.7	A	6 - 5	0.50m	⌀52	●
Yashica Yashinon-DS Auto 50mm F/1.7	A	6 - 5	0.50m	⌀52	●
Yashica Yashinon-DX Auto 50mm F/1.7	A	6 - 5	0.50m	⌀52	●
Yashica Yashinon-DS Auto 50mm F/1.4	A	7 - 6	0.50m	⌀55	●
Yashica Yashinon DS-M Auto 50mm F/1.4	A	7 - 6	0.50m	⌀55	●
Yashica Yashinon Auto 55mm F/1.8	A	6 - 5	0.50m		●
Tomioka Yashinon 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 ●

Lenses with similar focal length

■M42 mount (106)
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 Chinon Auto 55mm F/1.2	A	7 - 6	0.50m	⌀55	1970 ●
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	●
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 Ultron 50mm F/1.8	A	7 - 6	0.45m	B50	1968 ●
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 Tessar 50mm F/2.8	A	4 - 3	0.45m	B50	1966 ●
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 ●

Comments (1)

Nuetron Pete

28.01.2016 at 02:16

There were 2 Yashica 50mm F1.4 lens productions, one each by Yashica Tomioka and the Yashica Group. This matters because the Tomioka version used the Biotar/Xenon 7 element enhanced rear (2) element type while the Yashica Group used a Ultron 7 element enhanced rear group (4) element type. 2 unique and different designs.

BTW, The first Takumar was an 8 element design and soon thereafter changed to the above Ultron design which Pentax kept through the K mounts. This first 8 element design required a glued triplet making it cost prohibitive so it was replaced by a better design.

Biotar/Xenon type included, Vivitar, Chinon, Tomioka, Mamiya Sekor, Cosina, Canon FL 58 1.2, Summarex 85 1.5, Nikkor-S 55 1.2, and the Zeiss Pancolar and Planar (Berger) 55 1.4’s.

The Ultron type included, Zeiss Planar (Glatzel) 1.4 and 1.7, Takumar 1.4, Pentax A 1.2, Pentax SMC 85 1.4, Canon EF 1.4, Tomioka and Yashica 1.2, Zenitar 1.4, Fujinon 1.4, Porst 1.2.

I think by following the lenses that fall under each design a sense can be realized that the Ultron added high speed performance with superior sharpness as many of these lenses are some of the sharpest ever in manual focus. A good reference to illustrate this is comparing the Canon EF USM wide open performance to any Biotar/Xenon wide open, they just won’t compare performance wise as the Canon is a pinnacle for wide-open sharpness achievement in lens history only equaled by a Leica Summicron.

FYI

Just because they might appear as similar doesn’t necessarily make it all so? Looks can be deceiving. The Biotar/Xenon design uses 2 elements in the rear group while the Ulton uses 4 elements in the rear group…..none of these above were assymetric Planar designs like the old Zeiss Biotar, Pentacon, Meyer Optik, Helios, Schneider Xenon. Pancolar types……

Almaz-103

Alpa

Asahi Pentax M42

Asahiflex M37

Bronica

Bronica ETR

Bronica GS-1

Bronica RF645

Bronica SQ

Canon EOS

Canon EOS APS-C

Canon EOS M

Canon EOS R

Canon EOS R APS-C

Canon FD

Canon FL

Canon R

Canon S (J)

Canon S (LSM)

Chinon K

Chinon M42

Contarex

Contax

Contax/Praktica

Contax/Yashica

Contax 645

Contax G

Contax N

Cosina K

Cosina M42

Exakta

Exakta 6x6 (horizontal)

Exakta 66

Exakta 66 (vertical)

Exakta Twin TL

Exakta real

FED

Fujica GS645 Professional

Fujica M42

Fujica X

Fujifilm G

Fujifilm GA645 Professional

Fujifilm X

Hasselblad 1600F/1000F

Hasselblad H

Hasselblad V

Hasselblad X

Hasselblad XPan

Icarex

Kiev-17/19/20

Kiev-II/III/4/5

Kiev 6S/60

Konica AR

Konica F

Kowa Six

Leica CL

Leica L

Leica L APS-C

Leica M

Leica R

Leica S

Leica SM

Leotax

Mamiya 6

Mamiya 7

Mamiya CP M42

Mamiya CS

Mamiya E

Mamiya ES

Mamiya M645

Mamiya RB67

Mamiya RZ67

Mamiya SX M42

Mamiya TL/DTL M42

Minolta-35

Minolta A

Minolta CLE

Minolta SR

Miranda

Nicca/Yashica