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

Started 1 month ago | Questions thread
pedz
OP pedz Regular Member • Posts: 163
Re: rf 800mm f/11 lens puts a "square" on my screen and view finder

Stig Nygaard wrote:

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.

Using RF800/f11, this is the size of focusing area with various cameras...

HxW:

R5/R6: 40% x 60%
R7/R10: 60% x 80%
R3: 80% x 80%
R6II: 80% x 80%

https://cam.start.canon/en/H001/supplement_0110.html

Can you teach me to fish?

How did you find that document? Is "H001-001" significant somehow or is that just a random title?  I went back to cam.start.canon and tried to find that page and failed.

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Thank you,
pedz

 pedz's gear list:pedz's gear list
Canon EOS R5 Venus Laowa 100mm F2.8 Macro Canon RF 35mm F1.8 IS STM Macro Canon RF 24-105mm F4L IS USM Canon RF 24-240mm F4-6.3 +4 more
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