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07-30-2013, 01:29 AM   #16
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Make sure you are getting the focus correct on your K-5. Use the AF fine adjustment.

It's a unique lens. Remember that the FA31 is not about sharpness. It's about smooth transitions to out-of-focus - so much so that you typically can't tell where a photo transitions to OOF. It's also about being nearly impossible to get harsh OOF areas in your photo.


I have one of the later MIJ versions, purchased new. I think what you're seeing with your AIV version are likely characteristics of the lens - not AIV specific. Although I've never tried an AIV copy, I'm sure chesebert's observations are correct. But I believe these are the more subtle differences between various FA31s, whereas the FA31 itself is quite unlike any other lens (at least those I've used).


Last edited by DSims; 07-30-2013 at 01:50 AM.
07-30-2013, 11:26 PM   #17
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So what kind of pictures should I take to evaluate the quality of the lens and what to look for in the pictures?
07-30-2013, 11:53 PM   #18
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Photos of natural objects with fractal features (e.g., trees) and a brick wall test.
07-31-2013, 02:19 AM - 1 Like   #19
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QuoteOriginally posted by chesebert Quote
Photos of natural objects with fractal features (e.g., trees) and a brick wall test.
Or just stick it on your camera and use it every day for a month. The FA31 is just about a perfect "normal" focal length for APS-C, so it is very versatile.
Learn how to get the best out of it. No one will die if you make a few mistakes along the way. You'll love it.

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