What to do with your old 10D.

Started Aug 28, 2007 | Discussions thread
Jeff Peterman
Forum ProPosts: 10,247Gear list
Like?
Re: focusing?
In reply to dopravopat, Aug 30, 2007

I would think that the offset between visible light focusing and near IR focusing would be the same, or close enough, for different lenses. If so, calibrating for a 50mm should work for a range of others. Besides, the bigger issue is that some lenses have IR coatings (sometimes even, sometimes heaviest at the center), so you have to experiment a lot anyway.
--
Jeff Peterman

Any insults, implied anger, bad grammar and bad spelling, are entirely unintentionalal. Sorry.
http://www.pbase.com/jeffp25
http://www.jeffp25.smugmug.com

 Jeff Peterman's gear list:Jeff Peterman's gear list
Panasonic Lumix DMC-FZ40 Canon PowerShot S110 Canon EOS 7D Canon EF-S 10-22mm f/3.5-4.5 USM Canon EF-S 17-55mm f/2.8 IS USM +16 more
Reply   Reply with quote   Complain
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow