Canon rf s 18 45mm f 4 5 6 3 is stm vs sigma 18 50mm f 2 8?

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From Canon RF-S 18-45mm f/4.5-6.3 IS STM: Canon RF-S 18-45mm f/4.5-6.3 IS STM: A zoom lens by Canon for APS-C cameras, 18-45mm f/4.5-6.3. Specs - Maker: Canon - Focal length: 18-45mm (zoom) - Maximum aperture: f/4.5-6.3 (it gets darker as you zoom in) - Made for: APS-C sensors - Mounts: Canon RF - Stabilised: yes - Autofocus: yes What it frames like - On APS-C (Canon) (Canon RF): like 29-72mm on full frame; f/4.5-6.3 gives about the depth of field of f/7.2-10.1 there. ...

From TTArtisan 50mm f/2: TTArtisan 50mm f/2: A prime lens by TTArtisan for Full frame cameras, 50mm f/2. Specs - Maker: TTArtisan - Focal length: 50mm (prime) - Maximum aperture: f/2 - Made for: Full frame sensors - Mounts: Sony E, Fujifilm X, Nikon Z, Canon RF, L-Mount, Micro Four Thirds - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Sony E, Nikon Z, Canon RF, L-Mount): as marked, 50mm. ...

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