Sylwester Pietrzyk a �crit:
Hi, here is the responce I got from Sigma Japan. Now I can wait for modified lenses, that will switch to manual focus only via clutch mechanism without using AF/MF switch on the body (just like FA* series!). It is nice that they took it in consideration! Also note second point on AF speed of 100-300 in comparison to HSM version :-)
Sigma has no very "clutch" mechanism as Pentax: - on Pentax the AF/MF switch the AF on the lens AND on the body - on Sigma the AF/MF switch the AF on the lens ONLY, NOT the body (On my 2.8/70-200 EX)
Michel
