Specs:

Focal length: 50mm	Weight: 185g
Aperture: f/1.8 to f/16 6 bladed aperure Auto only	Mount: M42
Closest Focus: 0.45m (1.5ft)	Covers: Standard 35mm film size (24×36 mm negative)

Image quality


Build quality

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


Conclusion

It looks and feels great but the aperture ring is a not very thick and is just after the lens mount.
Not a problem and this works just as good as any when I used this on a old SLR made with a M42 mount.
But it's a little more fiddly and not much room for fingers with my digital Canon + M42 to EOS adapter.

Image quality wide is quite good sharpness all over but also has noticeable glow.
Stop it down a little and it is very nice, go down to f/5.6-f/8 and the sharpness is just amazing.
This sharpness is even quite good at f/16.
The bokeh can look a bit rough in some cases but I find it quite nice in most.

Overall a really nice one.


Thumbs up:
Image quality
Great sharpness stopped down
Build quality
Look & Feel


Thumbs down:
Glow wide open

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Technical Info
Scanner: Plustek OpticFilm 7600i
Film: AGFA CINEREX (X-ray film)
Developer: Kodak Xtol

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