On Sep 22, 2006, at 7:57 AM, Christian wrote: > Godfrey DiGiorgi wrote: >> In general, you don't use image stabilization when attaching the >> camera to a fixed support. IS systems are generally tuned to reduce >> camera motion in the frequency range induced by human musculature, >> not the range of vibration implied by a sturdy tripod. > > The newer Canon 300/2.8 400/2.8 500/4 and 600/4 have 4 IS modes. Off, > normal, panning, and tripod. The tripod mode is designed to reduce > vibrations of a different frequency than handholding. > > That being said, I have the older technology 300/4 IS and I pretty > much > keep the IS turned on even on the tripod. Warnings of "damage" or > blurry images have proved false and I do see an improvement. The only > time it is off is for flight shots.
I had the circa 2003 series EF 300/4 L IS. It had three modes - off, pan, normal. I tested it with the 'normal' mode turned on and also 'off' on tripod ... never saw a difference there either. But the lens consumes less power with the IS turned off. If there's no difference, I'd leave it off on a tripod. ;-) Godfrey -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
