Buy from Amazon : http://www.amazon.com/gp/product/B007ELSIE8?tag=scratchandsti-20
Samyang SY24M-NX 24mm Wide Angle Lens for Samsung NX
Aperture range of f14 22 Manual Focus
Includes removable hood lens caps pouch manual
Constructed of 13 elements in 12 groups2 aspherical lenses
84 degrees angle of view