Cosina [Auto] Cosinon-S 50mm F/1.7 MC

akaBauer Neovaron 50mm F/1.7 Multicoated

akaPetri 50mm F/1.7 MC

akaPorst Color Reflex Auto 50mm F/1.7 MC F

Standard prime lens • Film era • Discontinued

  • Announced:
  • · 1978
  • Production status:
  • ● Discontinued
  • Country of design:
  • · Japan
  • Original name:
  • · COSINON AUTO MC F=1.7 f=50mm
  • · COSINA MC COSINON-S 50MM 1:1.7
  • Class:
  • · Fast full-frame standard prime lens
  • System:
  • · Cosina K (1978)

Abbreviations

MC Multi-layer anti-reflection coating is applied to the surfaces of lens elements. This anti-reflection coating increases light transmission, eliminates flare and ghosting, and maintains color consistence among all lens models.

Specification

Optical design:
35mm full frame
50mm
F/1.7
6 elements in 5 groups (Double Gauss derivative)
Pentax K [45.5mm]
46.8° (35mm full frame)
On Pentax K APS-C [1.53x] cameras:
35mm equivalent focal length:
76.5mm (in terms of field of view)
35mm equivalent speed:
F/2.6 (in terms of depth of field)
Diagonal angle of view:
31.6°
Diaphragm mechanism:
Diaphragm type:
Automatic
Aperture control:
Aperture ring (Manual settings only)
6 (six)
Focusing:
0.50m
<No data>
Focusing modes:
Manual focus only
Manual focus control:
Focusing ring
Physical characteristics:
175g
⌀62.5×33mm
Accessories:
Screw-type 49mm
<No data>
<No data>

Source of data

  • Manufacturer's technical data.

From the editor

A standard lens for Cosina 35mm SLR cameras.

The same lens was sold under the names PETRI MC Petri 50MM 1:1.7 and PORST COLOR REFLEX MC AUTO 1:1.7/50mm F.

Under the name BAUER NEOVARON 1:1.7/50mm MULTICOATED, this lens was produced by Cosina in 1978 in a small number (maybe several hundred) of demo units for the Bauer RX1 35mm SLR camera (also made by Cosina), which was never put into mass production.

Other standard prime lenses in the Cosina K system

■Pentax K mount (4)
Cosina Cosinon Auto 45mm F/2.8 MC
akaAuto Chinon 45mm F/2.8
akaRevuenon Auto 45mm F/2.8		A? - ?0.60m⌀49 1979 ●
Cosina Cosinon-S 50mm F/2
akaCasio 50mm F/2
akaMiranda 50mm F/2
akaPetri 50mm F/2
akaPorst Color Reflex Auto 50mm F/2 MC F
akaSoligor 50mm F/2
akaVivitar Auto 50mm F/2		A6 - 50.50m⌀49 1979 ●
Cosina Cosinon-S 50mm F/1.8
akaPetri 50mm F/1.8		A6 - 50.50m⌀49 1981 ●
Cosina [Auto] Cosinon-S 50mm F/1.4 MC
akaBauer Neovaron 50mm F/1.4 Multicoated
akaPetri 50mm F/1.4 MC
akaPorst Color Reflex Auto 50mm F/1.4 MC G
akaVivitar Auto 50mm F/1.4 VMC		A7 - 60.50m⌀49 1978 ●

Lenses with similar focal length

■Pentax K mount (41)
Chinon Auto 50mm F/1.9
akaAgfa Color 50mm F/1.9 Coated
akaRevuenon Auto 50mm F/1.9		A5 - ?0.45m⌀49 ●
Chinon Auto 50mm F/1.4 [Multi-Coated]
akaAgfa Color 50mm F/1.4 Multi-Coated
akaRevuenon Auto 50mm F/1.4 MC		A7 - 60.45m⌀49 1979 ●
Chinon Auto 50mm F/1.7 [Multi-Coated]
akaAgfa Color 50mm F/1.7 Multi-Coated
akaRevuenon Auto 50mm F/1.7 MC		A? - ?0.45m⌀49 1979 ●
Cima Kogaku AM Topcor 55mm F/1.7 [MC]
akaEdixar 55mm F/1.7 MC
akaExaktar 55mm F/1.7 MC		A6 - 40.60m⌀52 1978 ●
Cosina 55mm F/1.2 MC
akaRevuenon 55mm F/1.2 MC		A7 - 60.60m⌀58 ●
Cosina Cosinon Auto 55mm F/2.1
akaVivitar Auto 55mm F/2.1		A4 - 40.60m⌀49 ●
Irix 45mm F/1.4 SLRA11 - 90.40m⌀77 2020 ●
smc Pentax-M 50mm F/1.7A6 - 50.45m⌀49 1977 ●
smc Pentax-A 50mm F/1.2A7 - 60.45m⌀52 1983 ●
smc Pentax-A 50mm F/1.4A7 - 60.45m⌀49 1983 ●
smc Pentax-A 50mm F/1.7A6 - 50.45m⌀49 1983 ●
smc Pentax-A 50mm F/2A5 - 50.45m⌀49 1985 ●
smc Pentax-M 50mm F/1.4A7 - 60.45m⌀49 1977 ●
smc Pentax-M 50mm F/2A5 - 50.45m⌀49 1979 ●
smc Pentax 50mm F/1.2A7 - 60.45m⌀52 1975 ●
smc Pentax 50mm F/1.4A7 - 60.45m⌀52 1975 ●
smc Pentax 55mm F/1.8A6 - 50.45m⌀52 1975 ●
smc Pentax 55mm F/2A6 - 50.45m⌀52 1976 ●
Ricoh XR Rikenon 50mm F/1.4A7 - 60.45m⌀52 1977 ●
Ricoh XR Rikenon 50mm F/1.7 [I]A6 - 50.45m⌀52 1977 ●
Ricoh XR Rikenon 50mm F/2A6 - 50.45m⌀52 1977 ●
Ricoh XR Rikenon 55mm F/1.2A7 - 60.60m⌀58 ●
Ricoh Riconar 55mm F/2.2A4 - 40.80m⌀52 1978 ●
Ricoh Rikenon 50mm F/2A6 - 50.60m⌀52 1982 ●
Ricoh XR Rikenon 55mm F/2.2A4 - 40.80m⌀52 1980 ●
Ricoh XR Rikenon 45mm F/2.8 • Pancake lensA4 - 30.60m⌀52 1994 ●
Ricoh XR Rikenon 50mm F/2 LA6 - 50.60m⌀52 1980 ●
Ricoh XR Rikenon 50mm F/2 SA6 - 50.60m⌀52 1981 ●
Ricoh XR Rikenon 50mm F/1.7 [II]A6 - 50.60m⌀52 1981 ●
Ricoh Rikenon P 55mm F/1.2A7 - 60.60m⌀58 ●
Ricoh Rikenon P 50mm F/1.4A7 - 60.45m⌀52 1985 ●
Ricoh Rikenon P 50mm F/1.7A6 - 50.60m⌀52 1984 ●
Ricoh Rikenon 50mm F/1.7A6 - 50.60m⌀52 1982 ●
Ricoh Rikenon P 50mm F/2A6 - 50.60m⌀52 1984 ●
Helios-77K-4 50mm F/1.8 [MC]
akaГЕЛИОС-77К-4 50mm F/1.8 МС		A6 - 40.45m⌀52 ●
Volna 50mm F/1.8 MC
akaВОЛНА 50mm F/1.8 МС		A6 - ?0.45m⌀46 1980 ●
Zenitar 50mm F/2 MCA6 - 40.35m⌀46 1995 ●
Zenitar-K 50mm F/1.9 MC
akaЗЕНИТАР-К 50mm F/1.9 МС		A6 - 40.45m⌀52 1991 ●
Vivitar Series 1 55mm F/1.2 VMCA7 - 60.60m⌀58 1984 ●
Porst Color Reflex Auto 55mm F/1.2 MC FA6 - 40.50m⌀55 ●
Carl Zeiss Classic Planar T* 50mm F/1.4 ZE / ZF.2 / ZK / ZSA7 - 60.45mE58 2006 ●
■Interchangeable mount (1)
MS Optics MS-Mode-S 50mm F/1.3 Dualsystem (200 units)M5 - 41.00m⌀49 2006 ●

Your comment

Copy this code

and paste it here *