Is the canon ef 17 40mm f 4l usm worth it?

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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. Specs - Maker: Canon - Focal length: 17-40mm (zoom) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Canon EF - Stabilised: no - Autofocus: yes What it frames like - On full frame (Canon EF): as marked, 17-40mm. - On APS-C (Canon) (Canon EF): like ...

From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.

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