For a really lightweight outfit, there’s a lot to be said for sticking with the tiny, retractable EF-M 15-45mm f/3.5-6.3 IS STM and adding the similarly small ultra-wide EF-M 11-22mm and telephoto EF-M 55-200mm if you need to bolster your range. However, if you’re in the market for a single lens, the EF-M 18-150mm is the one. It’s not as wide-angle as the 15-45mm but gives far greater telephoto reach, with an effective zoom range of 28.8-240mm in full-frame terms.
Measuring 61x87mm and weighing just 300g, it’s the most lightweight lens in the group, although it only undercuts the RF-S 18-150mm by a paltry 10g. Even so, there’s a lot packed in, including no fewer than 17 optical elements in 13 groups, a stepping motor-based autofocus system and a 4-stop…