Is the canon ef s 17 55mm f 2 8 is usm worth buying used?

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From Canon EF-S 17-55mm f/2.8 IS USM: Canon EF-S 17-55mm f/2.8 IS USM: A zoom lens by Canon for APS-C cameras, 17-55mm f/2.8. The constant f/2.8 standard zoom for Canon's APS-C DSLRs. Specs - Maker: Canon - Focal length: 17-55mm (zoom) - Maximum aperture: f/2.8 - Made for: APS-C sensors - Mounts: Canon EF - Stabilised: yes - Autofocus: yes What it frames like - On APS-C (Canon) (Canon EF): like 27-88mm on full frame; f/2.8 gives about the depth of field of ...

From Canon EF 17-40mm f/4L USM: Canon EF 17-40mm f/4L USM: A zoom lens by Canon for Full frame cameras, 17-40mm f/4. An older, light L wide zoom that is plentiful used.

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