Best wide angle lens for the canon eos rp?

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From Canon EOS RP: Canon EOS RP: A mirrorless camera by Canon with a 26.2-megapixel full frame sensor, announced in 2019. Specs - Maker: Canon - Mount: Canon RF - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 26.2 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2019 - Type: mirrorless camera Focal lengths on it Full frame is the reference size: lenses frame as marked. ...

From Laowa 15mm f/4 Wide Angle Macro: Laowa 15mm f/4 Wide Angle Macro: A macro lens by Laowa for Full frame cameras, 15mm f/4. An ultra-wide that focuses to 1:1.

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