I'm selling off my anamorphic lenses. This is the Sankor 16D, its in excellent condition. It works best with telephoto lenses. On a Full frame camera like the 5D MKII I would use 100mm lens or greater, I used a 100mm and and 85mm lens with great success on the Canon 7D, and I've also used it with a 50mm on the Panasonic GF1. There was no vignetting when using these lenses wide open, but as you stop down some vignette appears. This lens is sharp wide open so its helps keep some DOF.
I'm the second post down from the top. At the end of my post you will see samples taken with this lens on a Canon 7D using a Nikon 100mm AI lens.
This adapter like many of them were not designed for regular lenses so they can be quite hard to mount to the thread on the front of your taking lens. This lens has what I think to be a 50mm or a 50.5mm thread, The thread size still has me stumped. I rigged together an old 49mm metal lens hood with a 52 to 49 step down ring and a 52mm cir pl filter with the filter taken out so I could rotate the lens it alignment with each different lens. I then applied tape to the lens barrel with the stick side up so no glue on the lens, to make up the space between the lens barrel and the inside of the lens hood and then used a pipe clam to keep in locked down. It held very well for testing but I would buy a 50mm or a 50.5mm step ring on ebay from hong kong to actually make it more stable, there are also 2 different guys making aluminum rings for just this reason on ebay but hey sell for $75 and $95 so I would try the $5 rings first.
Its a bit harder to use because you have to focus both the taking lens and the Sankor to the same focus distance. I did figure out however that if you use Auto Focus on your taking lens you can just set you Sankor to your proper distance and the camera will set the taking lens to the correct distance because it can now find a clear focus point.
There seems to be no one anamorphic lens attachment that works with all lenses, its seems that most anamorphic lenses really yield toward the telephoto lenses so you can get the wide shot far away from the camera set up. Also they are know for their unique flares.
Here are some photos of my Sankor 16D for sale. I will include a lens case for it as well.