I have a Canon EOS300D SLR and am looking to upgrade from my Tamron AF XR Di 28-300mm lens.
I take mostly wildlife photographs and had thought of upgrading to a Sigma 500mm zoom lens.
Does anyone have any experience of this size of lens with a 300D? Also as I am an amateur I am not too sure what the lens extensions HSM, DG etc mean.
Also not sure how the lens size alters the DOF!
Any explanations or opinions would be appreciated.
Thanks from a total numbnut !!! I currently use AV mode at f5.6 with centre focus point locked so this may also need to be reconsidered if anyone else can suggest any better settings.
Thanks in anticipation for your help
Rin x