A variant of the TTArtisan 21mm f1.5 Lens, this lens is compatible with the Leica M Mount system and available in Silver or Black. 

A wide-angle prime with a large aperture, the TTArtisan 21mm f1.5 Leica M Mount Lens is fast, compact, and excels in low-light shooting. It is a manual-focus-only lens with full metal construction designed for full-frame cameras. 
Capable of stopping down to f/1.5 aperture the 21mm lens gives you a good amount of subject separation while having a wide frame of view. Due to this, the lens is ideal for vlogging as well as landscape photography, producing sharp images even in low light. 13 elements in 11 groups with aspherical element high refractive index glass work to minimise optical aberrations and allow for a more compact design. 
Weighting 412g due to its metal build, this TTArtisan lens is compact and sturdy, lowering the possibility of accidentally moving the focus ring when shooting. 
A multi-layer optical coating helps to suppress glare; however, certain metrics will not be as high as others, such as aberration correction and flare resistance. 

•     Fast f1.5 aperture
•     Compact wide-angle lens
•     Excels in low-light conditions
•     Metal focus tab improves handling
•     Multi-layer optical coating to suppress glare
•     Close Focusing Distance: 0.7 m
•     Filter Diameter: 72mm

What’s in the box?

•     1x TTArtisan 21mm f1.5 Leica M Mount Lens
•     1x Lens Hood
•     1x Front Lens Cap
•     1x Rear Lens Cap
•     1x Filter Adapter