Forum: Pentax K-1 & K-1 II
12-11-2016, 05:18 AM
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i have a sigma DG 17-35 that i used on an MZ-S and through the K-3 and it worked just fine but on the K-1 it wont read the aperture properly electronically. it is f2.8-4 and when using the wheel in TAV or manual it will show it going down to f1.4. i cured the problem by enabling use of the aperture ring.
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