Need help finding adapter.
I'm interested in a fisheye lens that is presently with a Nikon mount. The lens is written up as follows: "Nikon Mount Fisheye-N f2.8, 16mm for Nikon". Is there an adapter that would allow for use on my "M"? If so, can you specify? Would I need to also use the Canon EF to M adapter as well.
This appears to be the Russian fisheye that seems quite popular, but will it work for me? Is this truly a good fisheye lens, or should I look elsewhere for such a lens. There are others in or around $250. This Russian lens is going for $125.
Thanks for your help/advice.