D3S focus testing

Started Feb 14, 2010 | Discussions thread
xrdbear Veteran Member • Posts: 3,910
Re: Focus hyperbola

Marianne (bearing in mind I know nothing), I wonder if this problem, showing up as it does in the new version of the 70-200, is compounded by the rapidly changing magnification/focal length at close distances that was discussed some time ago.
Just speculating.
Fine Art Print sales of the Isle of Skye at:

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