[eeyore]

Originally Posted by glsammy

I've shot with another member here who was using the 170-500mm, which he affectionately calls the "Coffee Grinder" (The sound it makes when auto focusing!) I'm sure he would agree that the Bigma can rattle off far more shots in focus than the 170-500mm, so you stand more chance of getting the shot you want. Don't get me wrong the 170-500mm is capable of producing fine shots, no doubt about it.

that'll be me - it can get good shots no doubt about it but the bigma is definitely better - no idea what the 150-500 OS is like which is a compromise between the two.

btw 560 is very expensive for a little bigma - mine was £430 three yeasrs ago and that was in jessops - you can find them sub 400 notes if you shop arround.