Best wide angle lens for the leica m10?

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From Leica M10: Leica M10: A rangefinder by Leica with a 24-megapixel full frame sensor, announced in 2017. Slimmer than earlier digital Ms, close to the size of the film bodies. Specs - Maker: Leica - Mount: Leica M - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 24 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2017 - Type: rangefinder Focal lengths on ...

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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