Update: Image stabilization on Pentax K100D · Sep 18, 09:49 PM by Simon Mackie
In an earlier post I quoted a Canon whitepaper which explained that in-body image stabilization systems aren’t as effective as those used in the lens, especially at longer focal length lenses. Mike Vinton has emailed me to let me know that the image stabilization system on his Pentax K100D “works great” with with focal lengths up to 800mm, so maybe it is possible for in-body stabilization to work at longer focal lengths. I must confess I have not had a chance to play with the K100D yet, so I’d be very happy to hear your experiences with this issue. If you have a DSLR with in-body image stabilization, is it effective at longer focal lengths?

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