"Charles Wilson" <[EMAIL PROTECTED]> wrote: >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. -- Mark Roberts Photography and writing www.robertstech.com