Just a quick little tidbit today for photographers on back button focus. If you are still using the shutter button for focusing, check out this post to learn about the benefits of using the back * button for focusing. Having just purchased the Canon 5D Mark II I had to sit down and figure out the custom function settings to be able to back button focus. I thought I'd post them here in case anyone else is interested.

Under C.FN IV: Operation/Others set #1 to "3:AE lock/Metering + AF start" and #2 to "1:Enable" That should do it!

I'm off to put this thing to the test!
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