SIGMA LENS COMPATABILITY
Posted 01/10/2010 - 09:27 - Helpful Comment
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The Pentax 1stDL2 cannot use SDM for focusing so I would not expect it to work with a HSM lens. If I remember correctly only cameras from K-10D with the latest firmware onwards can use SDM and HSM. Earlier cameras are screw drive only.
Archie
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1 posts
15 years
120-400mm DG HSM.
I can't seem to use AF; only MF.