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05-20-2011, 04:07 PM   #1
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P645 150-300mm f/5.6

Can anyone comment on the performance of this lens in comparison to the FA/A* 300/4 lens? There doesn't seem to be a lot of information out there on this unit.

05-21-2011, 01:25 PM   #2
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I played with one back in 2002, demo loaner from Pentax. You are paying for the zoom feature with IQ and slower aperture. It was also heavier.
05-21-2011, 04:17 PM   #3
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I had the 150-300 and found at 300 it was softer than my 300/5.6 and at 150, my 150/2.8 runs circles around it, so I did not keep it. (The 200/4 is also much sharper than the zoom at 200.)

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