The Tale of Two Extremes: Canon EF 75-300mm f/4-5.6 III Lens Tested on the EOS 5Ds R (and 7D Mark II)

Image quality results from the Canon EOS 5Ds R and Canon EOS 7D Mark II have been added to the Canon EF 75-300mm f/4-5.6 III Lens page.

This lens lives at the bottom of Canon's telephoto zoom lens lineup. It is available in refurbished condition for less than the cost of a good filter. But, it was next in line to go in front of the highest resolution DSLR available. Check out how it fared.

B&H has the Canon EF 75-300mm f/4-5.6 III Lens in stock. This lens is also available in a USM version. Why does the USM version cost $10 less?