Originally posted by Naim Khan ... I thought I might go for the Sigma 120-400... I am looking at a budget of maybe £600-700.
My marketplace listing has expired, but I have a Lil'Bigma -- Sigma APO DGL 170-500mm f/5-6.3 -- that I don't want. That's a full-frame lens, barely used, essentially NEW. I paid US$1000 for it (yes, too much). I priced it for the marketplace at US$800, and I may be flexible. It performs absolutely great on my K20D, superb IQ, I just don't need to haul around something that big that I use so infrequently. All the packaging is complete and undamaged. If you or anyone is interested, I can re-list it. Ah, I should do that anyway.