Forum: Pentax K-1 & K-1 II
03-01-2018, 03:27 AM
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... the FA 20/2.8 and the A 20/2.8 are both deliver very good on the K-1. The problem is they are hard to get. I love my A20/2.8 and it is no problem to focus manually. The 5 aperture blades of the A 20/2.8 make nicer stars than the 6 aperture blades of the newer but optical identical FA 20/2.8
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