Best wide angle lens for the leica tl2?

Here is what the site says about that.

From Leica TL2: Leica TL2: A mirrorless camera by Leica with a 24-megapixel APS-C sensor, announced in 2017. The touchscreen T body with a 24-megapixel sensor and 4K video. Specs - Maker: Leica - Mount: L-Mount - Sensor: APS-C, 23.5 x 15.6mm, crop factor 1.5 - Resolution: 24 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2017 - Type: mirrorless camera Focal lengths on it Lenses frame ...

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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