The Fujinon XF 18mm f/1.4 LM WR is an 18mm wide-angle prime lens from Fujifilm. The lens is suitable for Fujifilm system cameras with an X-mount and covers an APS-C image circle (the full frame equivalent is a 27mm). 

Thanks to the linear autofocus, focusing with this lens is very fast and almost silent. It is a versatile lens and is suitable for shooting landscapes, architecture but also close ups with a minimum focusing distance of 20cm. The lens performs well in low light thanks to its wide aperture.

Furthermore, this lens has 15 elements divided into 9 groups which ensure minimal chromatic aberrations. 

Finally, the dimension of the lens is 68.8mm x 75.6mm, the filter thread is 68mm and it weighs 370g.