Nikon 16mm f2.8D AF Fisheye Nikkor format_1 Inch The spring in the viewfinder

The spring in the viewfinder hood for the magnifier cover is weak

an X2 Mini L plate (for heavier equipment)

quick-focusing lens for Nikon F mount cameras

but it's a good quality product that does what it says it's going to do

and sound bellows

Nikon 16mm f2.8D AF Fisheye Nikkor format_1 Inch The spring in the viewfinderThe Nikon 16mm f2. 8D AF Fisheye Nikkor is, as you may have guessed, a fisheye lens. It records a 170 degree image from corner to corner with all the circular distortion you'd expect from a fisheye. But it's a full frame fisheye, so it will produce an edge to edge image that takes full advantage of your sensor's resolution. In excellent condition, with very minor cosmetic wear; glass is clean and clear.