The Canon EF 75-300mm f/4-5.6 III Lens is nearly the same as the Canon EF 75-300mm f/4-5.6 III USM Lens with the latter having a better AF system and the former a better price.
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Where you buy your gear matters. You expect to get what you ordered and you want to pay a low price for it. The retailers I recommend below are the ones I trust for my purchases. Get your Canon EF 75-300mm f/4-5.6 III Lens now from:B&H Photo