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tjespo22
21st of January 2008 (Mon), 20:42
shutter speed that a canon 30d can sync with a flash
b00ty
21st of January 2008 (Mon), 20:54
1/250s in normal mode. Up to 1/8000 with hi-speed sync mode on.
tjespo22
21st of January 2008 (Mon), 21:26
and how do i turn high sync speed mode on
bigjon0107
21st of January 2008 (Mon), 21:33
Yes, you can sync up to that fast IF you are using an on camera flash that has a HSS mode (Example: 580EX, and 430EX). If you are using studio strobes, then your highest sync speed is 1/250th.

In order to enable HSS on an on-camera flash, it is done though the flashes menu. Look to your manual to see how this is done.