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Review statistics for Nick Crumpler
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Latest Review Posted Industar-50 50mm F3.5
I'm reviewing the black (with white or green numbering) 50-2 M42 lens. These can come in gloss black or satin black finishes with minor external measurement variations due to factory manufacturing differences.

Firstly, this is certainly not a "pancake" lens as pancakes are flat and pancake lenses are flat. This lens is more like a mini muffin lens being about 1 inch deep by about 2 inches wide. It's some half the size of a Pentax M 50mm and a third smaller than a Pentax A 50mm. It is very light, yet all metal and glass.

A cracking little lens that performs way beyond what I first expected; infinity is 90-95% sharp at f8 and f11 and about 70-80% sharp at f4. Depth of field is not dazzling for a Tessar clone design (it does not accurately correspond to the painted scale on the lens barrel) but it's not too badly off. Some online reviews go on about vignette at the corners at f3.5 and f4 and even f5.6 but it does not affect all lenses (must be a factory quality variable) and when it does, it's hardly noticeable.

There is also a lot of confusing plagiarised blurb online that goes on about the filter/hood diameter being 35.5mm, but most - not all - with 69******to 75****** serial numbers are smaller, and the same as the earlier M39 lens. You will need a hood to help reduce flare so you may have to make one for yourself as those that fit tend to make the smallness of this mini muffin lens rather bulky (you may as well buy a Pentax M or Pentax A 50mm). Colour ...

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