The problem with A series lenses with the K100D will be that they don't transmit actual focal length to the camera body, which means that you'll have to manually input the focal length for SR, (something that doesn't bother me with a fixed focal length lens but might with a zoom).
You might want to look for a smcp F or FA 70-200 4-5.6 or even better the smcp F 70-210. Manual focus feel is well awful but the lens itself is suburb, and built like a tank. Just a bit slower than the A 70-210 with variable aperture but you're already considering the Vivitar with the same aperture limitation. Stay away from the non smc Pentax or takumar K lenses in the same focal lengths unless you can get them essentially free. They're bottom of the barrel. CHRISTOPHE GRYSPEERT wrote: > I am looking for an additional lens to complete both my k100d and continue > with my k1000 as well. > > I noticed that there is quite an availability for the pentax A SMC 70-210mm > f4 on the internet at very reasonable prices. > > The other alternative I see is a vivitar 1 series (3rd) 70 210mm f2.8-4. > Seems that this lens (according articles) delivers very good optics. > > Since I havenot use any of the two, I doubt on whcih one is the better > choice. > The pro for the vivitar seems to me the f2.8, but unsure if the comparison > is correct. the Vivitar seems also a bit heavier... > > thoughts? > chr > > _________________________________________________________________ > All things trendy for Windows Live Messenger ... > http://entertainment.msn.be/funwithmessenger > > > -- -- The more I know of men, the more I like my dog. -- Anne Louise Germaine de Stael -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
