| Re: Sigma 170-500mm f5-6.3 APO EX DG HSM Lens Hello Robin I use the 170-500mm lens and I have had no problems with it except at the beginning in getting used to it I found after advice from other members like Graham was not to go below f8 and not to zoom completely out to the 500mm end and I have had no complaints at all ,only complaint now is I want extra distance so now looking for a teleconverter to go with it any ideas Graham?
__________________ Cheers............Bill |