Sigma 500 f4 focus shift.

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homerbasilwildlife Forum Member • Posts: 52
Sigma 500 f4 focus shift.

Hey guys I very recently purchased a sigma 500 f4. I have only had the lens for 2 days, so I haven't had a lot of time to do you extensive testing yet. That being said I have noticed that the lens seems to be slightly out of focus on every other image when shooting in af-c mode on my Nikon d500. It only seems to do it wide open through f6. I did order the sigma calibration port but it won't be here until monday. IS there a way to correct this with the calabrater from sigma or by using the built in calabrater in my d500? When the lens is in focus it is amazingly sharp even wide open. Oh and I updated my firmware in my camera to see if it would help, but I hasn't seemed too.

Nikon D5 Nikon D500
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