Welcome to the Third-Party Pentax Lens Review Database!
This database contains reviews and technical data on third-party lenses (made by Sigma, Tamron, etc.) designed for use with Pentax K-Mount DSLRs and film SLRs. In addition to being able to post lens reviews, users can also add new lenses to this database.
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Note: I don't currently own a Pentax digital camera, so these comments are made from adapting the lens to a Sony A7R5.
I own a number of 'vintage' 28mm from Pentax, Olympus, Canon. The Zeiss is the best of the bunch in terms of image quality - has slightly better centre sharpness (all of the vint...
Note: I don't currently own a Pentax digital camera, so these comments are made from adapting the lens to a Sony A7R5.
The 135 f2.8 is one of the most affordable Contax lenses, and it was one of the first I purchased to go along with my Contax RX, which was a bit of an impulse buy. I have to adm...
Like all my many 28mm lenses this one seemed a poor performer - but once I had unscrewed the rear lens section and cleaned off the almost ubiquitous oily haze the IQ jumped up. It seems that oil from the helicoid and mechanics gets to gas out and settle on the rear interior lens - and as these are ...
This is not a bad lens but AF tuning is a must. Mine is at -9 (strong front focus). Plus it does not maintain focus well, you'd better refocus each time you shake it or turn it down.
I picked this lens up cheap from fleabay as it needed a good clean. Attaching it to my Samsung NX300 with an adapter I use it in manual setting and rely on the camera's focus peaking to sort out the focus side of things. The positives are its range and lovely softness at 300mm, not so much to distra...
Leaving a note on how to clean the front lens group. Helicoid adjustment. A pain to remove the focus ring and incredibly hard to insert the screws back once you unscrew them. The screw top notch seems unusually slim; grab a sharping stone and a cheap driver to make do. My sample has heav...
very decent lens, got it pretty cheap on ebay as it has some dust inside but it's only visible in very specific scenarios (1st pic, sun right in front)
kind of a generic lens for the era I guess, 8 aperture blades, softer at f2.8 but usable if sharpened in post (like pics 2,3 and 4), gets sharper a...
Since I bought this beauty 1/2 Year ago it is obviously my favorite Lens for Pentax full format ...
Came to it over my Sony a7R IV / a9, where I used my old Contax Zeiss 25mm 2,8 , 28mm 2,8, 35mm 2,8 and Planar 50mm 1,7-
liked always the beautifully cinematic neutral colors and updated with the 25...