Pentax smc da 18 55mm f 3 5 5 6 al wr vs tamron 17 50mm f 2 8?

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From Pentax smc DA 18-55mm f/3.5-5.6 AL WR: Pentax smc DA 18-55mm f/3.5-5.6 AL WR: A zoom lens by Pentax for APS-C cameras, 18-55mm f/3.5-5.6. The weather-sealed version of Pentax's long-running kit zoom. Specs - Maker: Pentax - Focal length: 18-55mm (zoom) - Maximum aperture: f/3.5-5.6 (it gets darker as you zoom in) - Made for: APS-C sensors - Mounts: Pentax K - Stabilised: no - Autofocus: yes What it frames like - On APS-C (Pentax K): like 27-82mm on full frame; f/3.5-5.6 gives about ...

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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