https://pho.tography.org/tags/rf-100-500mm/ Recent content in rf 100-500mm on pho.tography.org Hugo -- gohugo.io en-us Sun, 03 May 2026 00:00:00 +0000 https://pho.tography.org/pre-focus-and-the-burst-window-rf-100-500mm-f/4.5-7.1l-is-usm/ Sun, 03 May 2026 00:00:00 +0000 https://pho.tography.org/pre-focus-and-the-burst-window-rf-100-500mm-f/4.5-7.1l-is-usm/ The RF 100-500mm f/4.5-7.1L IS USM is Canon’s accessible super-telephoto — L-series quality, manageable weight at 1.37 kilograms, and a zoom range that covers most wildlife and sports scenarios without a second body. The technique that makes it earn that range is not the zoom itself. It is pre-focus combined with burst discipline. Pre-focus means acquiring focus on a known point before the decisive moment, then holding it. A bird banking toward a perch, a runner coming through a gate, a vehicle entering a corner — the trajectory is predictable.