Specs:

Lens:
35mm

Aperture:
f/2.8 to f/16
6 bladed aperure (Auto and Manual)

Closest Focus:
0.5m (1.7ft)

Weight:
235g

Mount:
M42

Covers:
Standard 35mm film size (24×36 mm negative)

Image quality

Wide open:
Not crazy sharp wide open
Corner softness
Vignetting which is gone by f/4

Renders very good at all apertures.

Build quality

Very good and a very solid feel to it.


Conclusion

Build quality is very solid and good.
Image quality are nice stoped down but not super sharp wide open.
Renders nicely with good contrast and bokeh.
Flares usually looks quite good but backlight flares can look quite bad in some occasions.
Only seen this when the lens is stopped down.

Closest Focus:0.5m (1.7ft) is not very good for a 35mm lens.
And the lens is quite big in size and it don't looks like it would be that hard to constuct it so it could focus closer.


Thumbs up:
Image quality, Bokeh
Build quality


Thumbs down:
Closest Focus of 0.5m (1.7ft)
Flare / Backlight stopped down can looks quite bad.




Technical Info

Analogue B&W film
Scanner: Plustek OpticFilm 7600i
Film: AGFA CINEREX (X-ray film)
Developer: Kodak D76

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