On Wed, May 05, 2010 at 08:29:51AM -0400, Doug Franklin scripsit: > On 2010-05-05 1:49, Larry Colen wrote: > >I've not actually done any comprehensive tests. I also always figured > >that at high shutterspeeds there'd be little enough range of movement > >that SR being on or not would be moot. > > I haven't specificially tested for it, but I have done spot checks, > and it appears, without the scientific rigor, that SR on the K10D > has had a positive effect on my hit rate while panning at shutter > speeds up to 1/250 and focal lengths up to 400mm. It doesn't do > much for the direction I'm panning (horizontal) but definitely seems > to help with the vertical. This is based on some very informal > head-to-head testing I did with the *ist D and K10D when I first got > the K10D.
I think it's pretty much good for user-induced shake all the time. (800mm mirror lens hand-held, for example.) It's a question of when the user-induced shake is the dominant contributor to the image being blurry, and if it's useful then. (so far as I can tell, if you get to 1/15, the answer is no, because the amplitude of the shake is too big in relation to the shutter speed.) -- Graydon -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
