Sigma 300-800mm Lens Review at Luminous Landscape
Luminous Landscape have reviewed the Sigma APO 300-800mm F5.6 EX DG HSM lens, nicknamed the Sigmonster!
“If you are still paying attention, you must like what you see. Image quality is superb. What about focus speed? The Sigma HSM focusing motor is the match of Canon’s Ultrasonic USM motor at f5.6. The Canon system is faster at f4, but that’s always the case. A larger maximum aperture will allow for faster focusing speeds. Focusing accuracy is also, at least in my sample very, very good. I almost never override and use manual focus, and I’m a stickler for focus accuracy.”