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DPChallenge Forums >> Hardware and Software >> Question about 300mm 2.8L USM
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Showing posts 1 - 7 of 7, (reverse)
AuthorThread
03/02/2006 08:29:24 PM · #1
What does this feature do? I can't find a manual for this lens.

03/02/2006 08:31:07 PM · #2
It determines whether you want to ((.)) or not. : )
03/02/2006 08:32:28 PM · #3
Looks like it might be used for spot metering....??
I don't know what kind of lens it is, but did you try looking online for a manual?

Message edited by author 2006-03-02 20:33:49.
03/02/2006 08:37:42 PM · #4
I'm not sure but i'm thinking it turns on or turns off full time manual focusing.
03/02/2006 09:05:27 PM · #5
I own that lens. It's the audible alert for the focus preset. If you use focus preset, leaving this on means you'll hear a beep when you engage focus preset. If you leave it off, you won't hear anything.

Max
03/03/2006 02:11:26 AM · #6
Thanks Max

Another question: Can I set 2 focus presets? Since the focus preset ring can turn both ways.
03/03/2006 04:29:57 AM · #7
You cannot set 2 focus presets. I admit it's a nifty idea (one I would welcome).

Max
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