Canon's L-series telephoto zoom with IS — professional build and optics in the 70-300mm range.
The Canon EF 70-300mm f/4-5.6L IS USM launched in 2010 as the first L-series lens in Canon's 70-300mm range. It brought professional build quality, weather sealing, and superior optics to a focal range previously served only by consumer-grade lenses.
Optically very good — significantly sharper than the non-L 70-300mm lenses with well-controlled chromatic aberration and good contrast. Image stabilisation provides approximately 4 stops of correction. Ring-type USM motor delivers fast, silent autofocus with full-time manual override.
Canon EF mount with 67mm filter thread. Weighs 1050g — heavy due to L-series build. Full weather sealing. Minimum focus distance 120cm. White paint finish for heat management. Tripod collar included — removable. Fluorite and UD elements for optical correction.
Available used at mid-range prices. The L-series build quality is a clear step above consumer 70-300mm lenses. The RF 100-400mm f/5.6-8 IS USM is lighter for mirrorless users. Check for smooth zoom action and clear IS operation. Excellent for outdoor sports and wildlife.