| Canon EF (Full-frame) Lenses for less than $600 that have a focus motor and have a 400mm or longer focal length | | | | | Max focal length | 400 mm | | | Zoom range | 4x | | | | | Focus motor | Canon USM | | | Length | 188 mm | | | | | Min focal length | 100 mm | | | Weight | 1.4 kg | | | | | Diameter | 91 mm | | | Aperture | f/4.5 | | | | | | | | | | "The lens is super sharp, lightweight compared to equivalent EF L lens with IS. I find myself using this lens more and more. Adapts well to Canon's 1.4X TC with little loss of IQ, although AF speed suffers a tiny bit. Never need a tripod with this baby!!" bhphotovideo.com | Max focal length | 400 mm | | | Zoom range | 1x | | | | | Focus motor | Canon USM | | | Length | 231 mm | | | | | Min focal length | 400 mm | | | Weight | 1.9 kg | | | | | Diameter | 127 mm | | | Aperture | f/4 | | | | | | | |