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Old 02-09-2006   #16 (permalink)
JohnC
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Default Re: Custom Function Question - Focusing/AE Lock

I'm not familiar with the Nikons, but some Canon bodies have a Custom Function 20 that sets the sensitivity of AI Server focusing. It adjusts the length of time the system is programmed to stay at the most recently focused distance. The default setting is 0.5 seconds, but you can make that slower or faster if you are in a situation where you sometimes have another object crossing in front of the one you are tracking focus on.

CFN 20-0 is normal
20-1 and -2 are slow (remain focused for 1 second and 0.75 second) The focus stays on the original object
20-3 and 20-4 are fast (0.25 and 0.125 seconds) The focus will jump to the new subject

John

Quote:
Originally Posted by cyclohexane
I do use rear-button focusing on my Nikons though.* If another player moves in front of the one I'm tracking, I can simply let go of the focus button to maintain focus on the original player- it's a lot quicker than trying to grab focus lock buttons on the end of a telephoto zoom lens or pushing a lock button.*
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