K Mount Primes

, SMC Pentax DFA 100mm f/2.8 Macro WR on Sony A7R

SMC Pentax DFA 100mm f/2.8 Macro WR on Sony A7R

This 100mm f/2.8 macro is as small as they come, so how is it as a general purpose lens?

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, SMC Pentax DA* 55mm f/1.4 on Sony A7R

SMC Pentax DA* 55mm f/1.4 on Sony A7R

This classic 55mm f/1.4 lens is supposedly for APS-C, how does it do on full frame?

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, SMC Pentax A 28mm f/2.8 on Sony A7

SMC Pentax A 28mm f/2.8 on Sony A7

How does this classic Pentax wide angle lens hold up on the Sony A7?

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, Vivitar Series 1 – 105mm f/2.5 Macro on Sony A7

Vivitar Series 1 – 105mm f/2.5 Macro on Sony A7

So this lens has a legendary status, is it well deserved?

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, SMC Pentax M 28mm f/3.5 on Sony A7

SMC Pentax M 28mm f/3.5 on Sony A7

Another old wide angle that is about the same size as the OM, is it as good?

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, SMC Pentax K 28mm f/3.5 on NEX 3, Quick Review

SMC Pentax K 28mm f/3.5 on NEX 3, Quick Review

How does this cult classic wide-standard lens perform on modern APS-C Cameras?

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, SMC Pentax A 50mm f/2.8 Macro

SMC Pentax A 50mm f/2.8 Macro

Another old standard focal length macro (short telephoto on APS-C); pretty much every manufacturer had a standard focal length macro in the f/2.8-3.5 range.

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, SMC Pentax DA 35mm f/2.4

SMC Pentax DA 35mm f/2.4

I have already tested this lens on my Pentax K-5 and K-7, but how does it compare on the NEX 3? Tested for benchmark purposes. I copied the build text from that lens, but...

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, SMC Pentax K 85mm f/1.8

SMC Pentax K 85mm f/1.8

A compact telephoto with a large aperture is an extremely useful lens when combined with a nice compact body like the Pentax K-5, K-7, or even the old MX. How does the K 85mm...

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, SMC Pentax-K 135mm f/2.5

SMC Pentax-K 135mm f/2.5

Both 135mm and 200mm lenses were common on 135 format (35mm film) cameras, and conveniently 135mm times the 1.5 crop factor of Pentax is about equal to 200mm, making a lens with 135mm focal...

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