Hi im looking for a telezoom lens (canon mount) btwn the 55-300mm range. Kinda tight on budget so im trying to find something below $500 ($300 if possible).
Canon EF-S 55-250mm f4-5.6 IS
Canon EF 75-300mm f4-5.6 III USM
Sigma 70-300mm APO f4-5.6
Will the f4 be a huge problem with sharpness? Can oso recommend any good budget lenses?