Samyang 12mm f/2.8 ED AS NCS Fisheye
Samyang 12mm f/2.8 ED AS NCS Fisheye is a manual focus ultra-wide lens for full frame cameras.
Bright lens thanks to the high aperture value Has 7 aperture blades, mid-grade lenses usually have this amount of blades. Having rounded blades provides out of focus circle shape closer to a circle.
Weights 515 grams so plan ahead, carry only if really necessary. 72 mm long, requires consideration if you want to carry in the camera bag.