FS: Bower 8mm f3.5 Fisheye for Canon EOS System. It's actually intended for the APS-C format sensors but it'll work with a full frame or 35mm camera at a similar angle of view. This is how it looks on a 5D MK II
New on Amazon, these are $270. I'm asking $225 shipped in CONUS. I still have the box, and, presumably, everything that came with it. I only used the lens a couple of times - I'll get a couple of photos of it posted but its pretty much as new. I just never seem to have a use for it.
It's 8mm, which is 8mm. Focal lengths don't change with format size, just bullshit lens-marketing does. It gives you nearly 180 degrees corner-to-corner on APS.
Glass has a bit of dust on it but no marks. All internal packaging is included, as well as both original caps, the box, instructions, and pouch.
These aren't that sharp wide open (how many lenses are?) but sharpen up quite nicely by f8. And, by f8 there's so much depth of field it hardly matters if you focus. These have good heft to them, a nice metal mount, smooth focus and aperture rings. Surprisingly good build quality.