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Forum: Pentax SLR Lens Discussion
10-08-2009, 10:09 AM
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the answer is yes.
one easy way to tell, as I commented previously is to put an AF540FGZ on the body and you will have the flash zoom in and out as you change focal length on the lens.
it uses this for shake reduction also.
On my PZ-1 the body had an additional feature called image size tracking, which used focal length info, and focus distance info such that once you achieved focus on a moving object, the camera would zoom the lens in or out to maintain the same subject size in the frame.
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Forum: Pentax SLR Lens Discussion
10-07-2009, 03:51 PM
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I think it begins with the SMC-FA lenses, I am not sure the SMC -F lenses report it, but the FA for sure because they also control the zoom on the flash head through the body.
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