thanks carol;hi alandra..i have a sigma 50- 500mm ex telephoto lense i use most of the time for nature shots ..cause it shots fast..cam is set at a fast shutter speed to help to get clarity in pics for sharpness ..but hi shutter speed ya sufer a little in the lightin area especially lately with all or rain huh..real gray out ..than the other ones i use is a 70-300mm is canon lens a little bit slower than the 500 lens but great pics can be taken with it the 20d takes 5 pics a sec ..which works great for catchin the hawks n eagles in action which i love to see ..i take alot of pics but only a few are good ..ya know they fly off so ya pan with them but sometimes ya only get half the bird at times or lens focus on something in the background ..so i just keep the finger on the button and see what i got if there in action ,,but if there settin still ill have time to try differant settings and lenses ..also have a sigma 75 300 macro lens ..than 18-80 sigma macro lens thjan for the real closeups i use a 28mm macro lens ..and had a real cheapy tripod which didnt really support the cam with the big lens very well ..but just got a real good sturdy one from ebay which i got to try out yet ..like to get one like whittler did of the moon whith the new tripod..and other shots that may happen along if one has time to set it up in time ..sometimes i get caught in between changeing lens and the subject flys off ..hope tha answered your question ..fella

Awesome capture of the Hawk.

Carol