Recent content by tig3919

Hi thanks for your comments. Unfortunately I take both my dogs and my camera everywhere I go!! So the f2.8 for everyday use is too big and heavy hence the options I started with. I also am not sure how much use the IS will be in this particularly situation???

Hi, I have a canon 40d with an 18-200mm sigma lens. I currently spend a lot of time photographing 2 small mostly white dogs who are running around rather quickly. I use AF Servo and shutter priority set to about 1/1000 but the Sigma lens is not up to the job as it hunts and frequently locks...