DPReview.com is closing April 10th - Find out more

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

Started 1 month ago | Questions thread
cnyphotoguy Contributing Member • Posts: 817
Re: Reduced AF ares

pedz wrote:

drsnoopy wrote:

Nothing whatsoever to do with the 1.6x crop. On most bodies the AF area is reduced with this lens (and also the 600/11). The only exception is the R3.

This is well documented online in many places, including by Canon.

OTOH if you choose to apply the 1.6x crop, you will get almost the whole screen area available for AF.

Thank you.

I figured it was documented somewhere. It seems like the user's guide for the lens would be the sensible place.

I'm not complaining. Just curious what it was.

So far, except for the lens being obviously very dark at f/11, the image quality is very good.

Canon documents the reduced focus areas in the body's suplimental manual.

 cnyphotoguy's gear list:cnyphotoguy's gear list
Canon EOS Rebel T6i Canon EOS RP Canon EOS 90D Canon EOS R7 Canon EF 100mm F2.8L Macro IS USM +15 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow