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rf 800mm f/11 lens puts a "square" on my screen and view finder

Started 1 month ago | Questions thread
John Sheehy Forum Pro • Posts: 26,688
Re: rf 800mm f/11 lens puts a "square" on my screen and view finder

pedz wrote:

A quick tour of the user guide for the lens doesn't mention it and I can't find anything in the R5's guides about it either. When I attach the lens, the corners of a square is centered on the screen about 3/4's the full height of the screen. What is it trying to tell me? The only guess I have is that is the available focusing area.

Correct.  Only that square is available for AF.

You won't see it in the lens manual because the lens does not directly dictate the largest AF area; the camera body has its own rules about how it might restrict the area for specific lenses.

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Beware of correct answers to wrong questions.
John
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