| Re: Taking Stock If you look on the net you will find comparison tests like this one; Canon 100mm f/2.8 Macro USM vs Tamron 90mm Macro Lens
I have always used a well lit wall and whatever lense on a good tripod
to get some idea of a lenses performance (not my current crop)
__________________ Your garden their refuge, a jig-saw of habitats for wildlife under pressure |