>>>> This looks interesting, a new Sigma 70mm f/2.8 macro lens: >>>> http://www.sigmaphoto.com/lenses/press_release_email5.htm >>>> >>> No aperture ring, so only of interest to Z1-p, etc. users. >>> >> Well, from my photography teaching experience I can (sadly) report >> that the vast majority of users in the real world use their cameras in >> Program exposure mode, so it's compatible with all the A series >> cameras, all the P series, all the SF series, all the PZ series and >> all the MZ/ZX series. And the *ist film camera. >> > > I also think the MZ-6 and I am sure the MZ-50/30/60 can use that with > (on the body) Av as well. But I am wondering if a macro lens will be > used (as macro) on P all that much. > P mode does not make a lot of sense to me, but remember that lenses without aperture rings (which I generally dislike, but read on) can be utilised fully in Tv mode, too, on most or all of the above mentioned cameras.
I've taught myself most of what little I (think I) know about macro work, so I may be doing it all wrong, but I often use Tv mode for such shots on my MZ-5n. I reckon I need all the DOF I can get, and there is never so much light that the minimum aperture is reached (I'm not using a flash), so I just set the time dial at the slowest speed I think I can handle and leave the lens in auto, which in practice means the camera will stop down as much as possible for the available light. So for a macro lens, loosing the aperture ring may not be that bad. - T -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
