Problem with focus on new canon EOS 650D?

Started Jan 22, 2013 | Discussions thread
WilbaW
Veteran MemberPosts: 8,672Gear list
Like?
Re: Problem with focus on new canon EOS 650D?
In reply to MAC, Jan 31, 2013

MAC wrote:

post your chart for me to download and print and tell me how far away to position my 50mm on crop and I'll consider shooting it at F1.4

Target = A4 (letter, whatever), portrait orientation, top half white, bottom half black.

Set up target parallel to the image sensor (use a mirror for alignment), at 50f in good light. Calibrate slanted scale with CD AF. Compare with PD AF, ten shots each way, pre-focussed at infinity.

Tilt target 45 degrees and repeat.

Bonus points - if you use a horizontal line rather than the above, how thin can you make it and still get consistent confirmed focus?

What do Nikon say?

?

??

???

-- hide signature --

Check out the unofficial Rebel Talk FAQ - http://snipurl.com/RebelFAQ

Reply   Reply with quote   Complain
Post (hide subjects)Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow