Cosinon Auto MC 50mm f/1.7 (M42) Review © blog.bkspicture.com

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Cosinon Auto MC 50mm f/1.7

Reviews
Posted by Bengt Köhler Sandberg 2014-03-25

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

Bokeh

Digital

Download full size image. Here
f/1.7 - f/2.8 - f/4 - f/5.6 - f/8 - f/11 - f/16

Bokeh

Flare / Backlight


F/1.7	F/2.8

Extra Sample

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

Filming

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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