
The Canon RF 100-500mm F4.5-7.1 L IS USM is the most versatile super-telephoto zoom in the RF lineup and the benchmark for the mount. It delivers L-series sharpness corner to corner across a huge 5x range, focuses fast and accurately, and stays surprisingly light at 1365g. The slow variable aperture is the only real compromise, making it a daylight specialist rather than a low-light tool.
- — Extremely sharp from corner to corner across the entire 100-500mm range, even wide open
- — A 5x zoom that reaches 500mm yet weighs only 1365g, lighter than the EF 100-400mm it succeeds
- — The variable aperture darkens quickly, reaching f/6.3 by 363mm and f/7.1 at 500mm
- — Works best with ample light; not a low-light or deep-shade performer



