Canon RF 100-400mm f/5.6-8 IS USM 鏡頭

The image stabilization is a lifesaver for handheld shots at the long end, and the zoom ring has just the right amount of resistance. Managed to grab some crisp bird photos at 400mm without a tripod, which I never could have done with my old kit lens.

I was skeptical a zoom this light could handle fast-moving subjects, but the focus tracking locked onto birds mid-flight without hunting. The reach at 400mm is genuinely useful for travel, and the compact size means I actually bring it along instead of leaving it at home.

The image stabilization on this lens is so effective that I got sharp handheld shots of birds in flight at 400mm, which I never could have managed with my older gear. It's impressively compact for a telephoto zoom, making it easy to carry on long hikes without feeling like a burden.