Best travel lens for the nikon df?

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From Nikon Df: Nikon Df: A DSLR by Nikon with a 16.2-megapixel full frame sensor, announced in 2013. Retro dials on a full-frame DSLR with the D4's 16MP sensor. Specs - Maker: Nikon - Mount: Nikon F - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 16.2 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2013 - Type: DSLR Focal lengths on it Full ...

From Yongnuo YN35mm f/2 DF DSM: Yongnuo YN35mm f/2 DF DSM: A prime lens by Yongnuo for Full frame cameras, 35mm f/2.

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