No power zoom functions will work on the*ist-D - it doesn't have the body-to-lens power contacts to operate the zoom motor in the lens.
Everything else, though, works just fine. Auto focus is powered by a mechanical drive system with a motor in the body, and still works. The same is true for the power zoom 28-105 - if yours doesn't auto- focus on the *ist-D, you've got a problem (or you've left the body switched to manual focus). The power zoom 28-105 is my most used lens on my *ist-D, and the 80-200 is my second most used lens, so I speak from experience. On Fri, Jul 01, 2005 at 06:37:18AM +1000, Charles Wilson wrote: > I actually meant better in sense of picture quality. Also concerned about > power zoom, will it work on ist D. I can't find the answer to that > anywhere. my ist D manual says its compatible bit then it has a small > number next to it, then no key to what the number means. I know other > power zooms do not work on ist D. > > Thanks > > > Charles > > > > >Dear All, > > > >Thinking of buying the pentax 80- 200 f2.8 for my Pentax ist D. But I am > >concerned about the power focus. I have a 28 -105 power zoom which does > >not > >work on ist D is this the same for 80-200 f2.8. Would it be better to buy > >the sigma lens ? > > What do you mean by "better"? > The Sigma weighs less and costs less. > The Pentax weighs a lot more, focuses a lot closer and costs a lot more. > If you can afford the Pentax, it's definitely worth it. If you can't, > buy the Sigma. > >
