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Old Aug 12, 2006, 9:02 PM   #1
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Does this lens work with the *ist?

Any opinions on it versus the M 50mm 1.7?



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Old Aug 12, 2006, 9:53 PM   #2
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The Pentax-A 50mm 1.7 will work with the *ist cameras. I don't have one, I have a M 50mm 1.7 instead. I don't think the optics are any different, so it should be a really sharp lens (mine is). Some people find it a bit soft at 1.7, but I haven't noticed it that much (now,my M 50mm 1.4 is quite soft at 1.4, OK at 1.7 and really nice beyond that). The advantage the A lenses give you is the ability for the camera to set the aperture, while the M lenses have to have the apeture set by the ring. Just my opinion, but I'm not sure I would pay a premium for that ability - I'd rather pay a premium for an F or FA lens.
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Old Aug 13, 2006, 5:33 AM   #3
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Set it to f/2.8 and it's the sharpest lens you will find.

The focal length on a 1.6 crop body makes it a bit awkward at times to use.

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