What is the yongnuo yn17mm f 1 7m good for?

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From Yongnuo YN17mm f/1.7M: Yongnuo YN17mm f/1.7M: A prime lens by Yongnuo for Micro Four Thirds cameras, 17mm f/1.7. Specs - Maker: Yongnuo - Focal length: 17mm (prime) - Maximum aperture: f/1.7 - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: yes What it frames like - On Micro Four Thirds (Micro Four Thirds): like 34mm on full frame; f/1.7 gives about the depth of field of f/3.4 there. ...

From Lenses: Your first lenses: 1. A standard zoom, 24-70mm or 24-105mm equivalent. The kit zoom is fine to start. 2. A fast standard prime, a 50mm f/1.8 on full frame or a 33-35mm f/1.4 to f/1.8 on APS-C. Low light, people, food. 3. Then add for what you shoot: a telephoto zoom for wildlife and sport (wildlife and sport), a wide zoom for landscapes (landscape), or an 85mm for portraits (portraits).

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