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- Chris
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Hi folks, looking for a little advice, I'm looking for a walkaround for my Pentax K20D and seem to have settled on a Sigma 17-70 as the best value option without spending a fortune, now I've sourced a couple of possible used options on the older non HSM version (and non OS)
I wasn't bothered about getting the lens without OS as like Sony and Olympus I have in body IS, however I was wondering what difference having the HSM motor makes v the older version without?
Apologies if this is an obvious question but I never had the option of HSM on any previous Sigma Sony mount lenses I owned.
I wasn't bothered about getting the lens without OS as like Sony and Olympus I have in body IS, however I was wondering what difference having the HSM motor makes v the older version without?
Apologies if this is an obvious question but I never had the option of HSM on any previous Sigma Sony mount lenses I owned.