By Mount

, HD Pentax DA 20-40mm F2.8-4 Limited WR on Sony A7R

HD Pentax DA 20-40mm F2.8-4 Limited WR on Sony A7R

Does the price of this fine crafted Pentax beauty match the performance?

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, Vivitar 28mm f/2.5 on Sony A7R

Vivitar 28mm f/2.5 on Sony A7R

How does this old Vivitar do on a modern A7R?

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, SMC Pentax K 24mm f/2.8 on A7R

SMC Pentax K 24mm f/2.8 on A7R

How does the Pentax compact wide perform on full frame?

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, Sony ZEISS FE 24-70mm f/4 ZA on Sony A7R

Sony ZEISS FE 24-70mm f/4 ZA on Sony A7R

This is a beautifully constructed and well sized kit lens for the A7R, how does it perform?

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, 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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Sharp Points: Samsung NX30 vs NX300

The first thing I noticed with the NX30 was how sharp the images were in comparison to my NX300 with the same lens. These cameras are supposedly the same sensor, so what could be...

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, Sony ZEISS 135mm f/1.8 on Sony A7

Sony ZEISS 135mm f/1.8 on Sony A7

This lens is a serious piece of metal and glass, but is it worth the price?

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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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, Olympus OM 24mm f/2.8 on Sony A7R

Olympus OM 24mm f/2.8 on Sony A7R

How does this classic, and very compact prime hold up on the Sony A7?

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