On Fri, May 21, 2010 at 6:57 PM, Anthony Farr <[email protected]> wrote: > On 22 May 2010 04:53, Thibouille <[email protected]> wrote: >> No, what it needs is PowerZoom electrical contacts. >> It should work fine on MZ/Z serie... > > Sigma says that AF and SR won't function on "film SLR, Pentax ist* > series and K100D DSLR cameras" (which includes MZ/ZX cameras under the > film SLR definition). However, that's ambiguous in that it's unclear > if neither of those functions will work for those cameras, or that > both functions can't be used simultaneously but one or the other can > be used alone. Of course, the omission of film SLRs which > nevertheless are Powerzoom capable could be an oversight. > > regards, Anthony >
Actually, it's pretty clear, neither AF or OS will function on bodies which don't support SDM (IE the K100D and all earlier bodies). HSM is merely Sigma's version of SDM and the OS system is integrated with the AF system in most lens-based implementations. -- Adam -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
