Best wide angle lens for the leica m9 p?

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From Leica M9-P: Leica M9-P: A rangefinder by Leica with a 18-megapixel full frame sensor, announced in 2011. An M9 with a sapphire-glass screen and no red dot. Specs - Maker: Leica - Mount: Leica M - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 18 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2011 - Type: rangefinder Focal lengths on it Full 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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