Reviews
Great glass but Vingetting at 18mm
I have other K+F filters for other lenses and they have been exceptional. I ordered this duo for the Sigma APS-C 18-50mm F2.8 zoom which I use on my Sony A6000. If I stack both filters together I get strong black corners. If I zoom from 18mm to 19.5mm they are gone. If I use one filter at a time no problem. So I have decided to leave the polarizer on for the summer and re-install the UV in the fall. Unless I plan to shoot 20-50mm on a particular day. These filter rims are so thin I dont believe there is anything in the marketplace that could improve this situation. I have stacked K+F on other lenses with no issues. Must just be this Sigma lens design.
04/05/2023
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