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05-15-2011, 03:16 AM   #1
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Cost of lens calibration in Japan

I have a 21mm Limited that I picked up used. After shooting with it a bit, the images appeared a bit soft so i decided to use the AF Fine Adjustment (Pentax K-5) to calibrate it. With a setting of +10, it's not quite enough to get it into calibration. Does anyone here know how much Pentax Japan charges to calibrate a lens?

05-15-2011, 04:52 AM   #2
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I doubt very much anything can be done to the lens. What they will do is to program your K-5 memorizing "that" DA21 and compensate by the software.
05-15-2011, 05:02 AM   #3
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The DA 21 mm is a little strange, it is more 'served' by sharpening in post processing than by AF calibrating.
I had the same thing and first started to adjust in the body but wasn't satisfied whit it, got a second copy, and the same 'softness' happened, so I tried the PP way and now it's OK...

Last edited by philippe; 05-15-2011 at 10:19 PM.
05-15-2011, 04:20 PM   #4
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Sharpening seems like a bad workaround since the issue isn't how sharp it is where it is focused. The issue is that the point of sharp focus is about 1 cm behind the object I am focusing on.

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