Z Camera - AF tuning is still needed.

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icic Regular Member • Posts: 177
Z Camera - AF tuning is still needed.
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I just had a play around with my 58 1.4 and did some test wide open at 1.4 and found that it is back focus for about 10mm from distance of a Meter. I think the issue is that due to the optic design of the 58, the point of Max contrast is different to the point of Max sharpness. When it is at it's Max sharpness, its got a glow around the edges that might have confused the AF thinking it's still soft. I had to tune it to –8 to get the shapest wide open.

My wife's book edge lined up at 150mm

Max contrast  is when it is back focused by 10mm at 160mm

Max Sharpness

 icic's gear list:icic's gear list
Nikon Z6 Nikon AF Nikkor 50mm f/1.8D Nikon AF-S Nikkor 50mm f/1.8G Nikon 85mm F1.8G Nikon AF-S Nikkor 28mm f/1.8G +2 more
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