baldrick
Prominent Member
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Just out of interest, if I buy a Pentax K10D with high speed (HSM) focussing, will my existing non-HSM lenses work with the new body?
Also will HSM/USM lenses only work with HSM/USM bodies? Again with reference to the current Pentax line up you have the K100D, K110D and K10D. Of these only the latter has HSM focussing. Does this mean Sigma/Tamron etc... will have to make 2 versions of their lenses for Pentax until all their cameras feature HSM/USM?
Also will HSM/USM lenses only work with HSM/USM bodies? Again with reference to the current Pentax line up you have the K100D, K110D and K10D. Of these only the latter has HSM focussing. Does this mean Sigma/Tamron etc... will have to make 2 versions of their lenses for Pentax until all their cameras feature HSM/USM?