100–400mm · f/4.5–5.6
The Canon EF 100-400mm F4.5-5.6L IS II is a professional-grade telephoto zoom with excellent wide-open sharpness across the range. Its build is dust/moisture-resistant and robust, though heavy at 1640g. The twist zoom replaces the old push-pull design, improving weather sealing. Autofocus is fast and quiet, and the 4-stop IS aids handheld shooting. Weaknesses include high price and weight. It suits wildlife and sports photographers needing a versatile, durable zoom.