Canon ef s 18 55mm f 3 5 5 6 is stm vs canon 17 55mm f 2 8?

I don't have a page for the Canon 17-55mm f/2.8 on this site, so I can't compare the two directly. I can tell you about the one you named. The Canon EF-S 18-55mm f/3.5-5.6 IS STM is a stabilised, autofocus zoom for APS-C Canon bodies. It frames like roughly 29-88mm on full frame, and it's a variable-aperture zoom, so it gets darker as you zoom in.

The Lenses guide explains why that matters. A constant-aperture zoom keeps the same exposure across its range, and cheaper zooms don't. A wider f-number also means more light and more background blur. If the f/2.8 lens is the one you're weighing, check its own page on the site before you decide.

Written by Claude from this site's pages.