Originally posted by ChrisDx Thank you all for your contributions.
I understand that Pentax is one of the manufacturers that provide image stabilization in the camera body rather than making it a feature of lenses. The system automatically detects the focal length of the attached lens and optimizes for it. For the K-r, this does not work for some older lenses in which case the focal length can be entered manually. This may or may not be an issue with the K-5.
Can anyone she any light on this?
Thx
Pentax calls their stabilization "SR". They started using it in the K10D and K100D cameras, at the same time they dropped the "*ist" name. All cameras after that
except for the K110D have it. The system is great. The only "problem" is that there is no standard test to quantify how well it works. That means many opinions. The system makes it easier to handhold the camera at low shutter speeds. If you are already decent at this, you can get some astonishing results, like sharp shots at 200mm and 1/15 sec.
All the SR-equipped cameras work the same way with each lens series, so the K-5 has no advantage there. Autofocus lenses can tell the camera what their focal length is and manual focus lenses can't. In practice, that makes manual-focus zooms a little more difficult to use, because the focal length changes.