Canon Ef 75 300mm F 4 0 5 6 Is Usm Overview Digital Photography Review
A 7blade aperture is a decent feature for a lens in this price range The Canon EF mm f/456 III USM Lens is most comparable to the Canon EF mm f/456 IS USM Lens Image quality is very similar between the two Of course, IS can offset part of the handholding dilemma The III suffers from CA (Chromatic Aberration) Canon Zoom Lens IS EF mm Tamron AF0mm UltraZoom This weekend I took lots and lots of photos, all using the mm Canon lens When I got home, I found that almost all of them were slightly out of focus (some more than others, but I put that down to user error) Even the best ones seemed a bit blurry
