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REVIEW: Cosinon Auto MC 50mm f/1.7

Reviews
Posted by Bengt Köhler Sandberg 2014-03-25

Cosinon Auto MC 50mm f/1.7 (M42)

Specs:

Focal length:
50mm
Weight:
185g
Aperture:
f/1.7 to f/16
6 bladed aperure
Auto or Manual
Mount:
M42
Closest Focus:
0.5m (1,7ft)
Covers:
Standard 35mm film size
(24×36 mm negative)


Image quality


Analogue B&W film
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)

Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)


Bokeh
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)



Digital
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Download full size image. Here
f/1.7 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16


Bokeh
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)

Flare / Backlight
Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42) Cosinon Auto
                                                      MC 50mm f/1.7
                                                      (M42)

F/1.7              
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)

               F/2.8
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)


Extra Sample
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)
Cosinon
                                                          Auto MC 50mm
                                                          f/1.7 (M42)



More sample images can be found at:
http://www.sample-image.com/cosinon-auto-mc-50mm-f1-7/



Filming
Cosinon Auto MC 50mm
                                            f/1.7 (M42)


Build quality

Very well made and are solid as a rock.
The feel is also very good.


Conclusion

Overall quite the nice lens.
Image quality wide open has some noticeable glow and corner softness.
Stop it down a step and the glow is all gone but you need to stop down a bit more before you lose the corner softness.

I do also like how it renders bokeh etc.
Backlight can be a problem wide open but handles it very well at f/2.8.


Thumbs up:
Image quality stoped down
Renders, Bokeh and flare
Build quality and feel

Thumbs down:
Corner softness
Glow wide open


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Technical Info

Analogue
Scanner: Plustek OpticFilm 7600i
Film: Kodak Tmax 100
Developer: Kodak Xtol

Digital
Canon 500D with lens mount adapter
Auto White Balance and ISO 100

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