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11-08-2015, 06:50 PM   #1
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Has anyone tried Ebay Pentax to Nikon Infinity Focus adapter?

Has anyone tried Ebay Pentax to Nikon Infinity Focus adapter?

Like this one PENTAX PK K Lens to NIKON Mount Adapter Infinity Focus does it make the image less sharp?

11-08-2015, 07:01 PM   #2
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Think of it as a short, low-quality tele-converter.
11-09-2015, 01:24 AM   #3
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Yup, there's not much of a point to these adapters unless you're desperate.

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11-09-2015, 01:44 AM   #4
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Or maybe not. Razor sharp imagery is not always desirable. Photographers have been adding diffusion, distortion and lowering contrast for decades. Lens makers even made soft focus lenses.

11-09-2015, 11:06 AM   #5
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It works. Following photo is shot with a Chinon 135mm F2.8 Multi-coated @ f2.8 & the adapter on a Nikon D60

11-09-2015, 10:13 PM   #6
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Before switching completely to Pentax, I used something like this on my Nikon D3000. They work fine, you just lose about 1 stop of light. I didn't notice any sharpness loss.

On a related note, I also have a couple of M42 to Nikon infinity focus adapters and only one can actually focus to infinity. The glass inside to provide infinity focus was probably not calibrated well.
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