Nikon 810 autofocus issue

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Twistedlights New Member • Posts: 16
Nikon 810 autofocus issue
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My Nikon D810 had a Mirror box replacement.Refer thread below https://www.dpreview.com/forums/post/59414998

Then a started to notice Autofocus issues (Front Focusing) with 50mm 1.4F FX also tried 24-70mm F2.8 non VR and DX 35mm 1.8F after I downloaded a AF test pattern with scale to test AF.

All test done at Fastest Fstop and with bright light on target.

Sample: 2.5 meters from target with 50mm @ 1.4F

IMG 1- No AF fine tune

IMG 2. AF Fine tune to 20

I tired the same lenses on  my Nikon D3100 and got sharp AF results.

On D810 I tried AF fine tune and went upto +20 still the focus was not as sharp as I got on D3100

Is there any other way to test AF. I saw a lot of videos and read a lot of webpages.

(The Sharpest focus i got was with 24-70mm @ 2.8 on my D3100).

 Twistedlights's gear list:Twistedlights's gear list
Fujifilm FinePix S5200 Zoom Nikon D3100 Nikon D810 Nikon AF-S DX Nikkor 18-55mm f/3.5-5.6G VR Nikon AF-S DX Nikkor 35mm F1.8G +2 more
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