Unless hand holding, turn the IS off. I\'ve tried using IS with both monopods and tripods; including a small tabletop that supports 20+ lbs and I most often get a jittery look, I just turn it off when mounted on any support system. Mirror lockup and a remote shutter release help a ton with sharpness as do higher shutter speeds (as mentioned above.)
The 300 f4L IS uses Canon-s older IS, it gives you about 2 stops, but gets rather erratic when on a support. If your shots don\'t clear up after turning IS off you might send it in to Canon for a check up!
Hope things get fixed, the 300 is a fav lens
Jerry
Unless hand holding, turn the IS off. I\'ve tried using IS with both monopods and tripods; including a small tabletop that supports 20+ lbs and I most often get a jittery look, I just turn it off when mounted on any support system.
The 300 f4L IS uses Canon-s older IS, it gives you about 2 stops, but gets rather erratic when on a support. If your shots don\'t clear up after turning IS off you might send it in to Canon for a check up!
Hope things get fixed, the 300 is a fav lens
Jerry
Oct 27, 2012 at 07:55 PM
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