Walimex Pro 12mm F2.8 ED AS UMC* Fish-Eye Specifications
Diagonal Angle of View:
Number of Aperture Blades:
internal focus mechanism, manual focus only
*The lens was announced as NCS coated, according to product pictures it's labeled UMC. B&H states the following in their product description: "Highly effective nanocrystal anti-reflection (NCS) coating applied together with UMC coatings improve light transmission and reduce ghosting."