25-06-2008, 02:24 PM
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 | Knight Commander of the Wild Empire | | Join Date: Mar 2007 Location: Romford, Essex
Posts: 5,349
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| Re: Sigma 170-500mm f5-6.3 APO EX DG HSM Lens
Quote:
Originally Posted by glsammy  The Bigma is generally regarded as "Better" than the 170-500mm, I've no idea how the two compare optically, but the Bigma is branded their top range EX series, with the HSM. 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. To me focusing speed and accuracy is vitally important in a lens, it's one of the reason I rejected the Sigma 120-300mm, at least with the sample I had which couldn't hold a candle to the Bigma.
Don't get me wrong the 170-500mm is capable of producing fine shots, no doubt about it.  | Thanks - I a little while of being able to afford it, but by the time I can Im sure there will be a new model to confuse things further! |