Nikkor 18mm lens and Canon 1Ds Mk II
Stephen Frink writes about using a Nikon Nikkor 18mm lens on a full-frame Canon 1Ds Mk II:
"The Nikkor 18mm lens is one of the more popular housed wide angles to ever be used underwater. Now, with the ever-expanding popularity of Canon cameras, there is nostalgia for that one particular lens, especially since Canon doesn't offer an 18mm prime. However, there is a way to use the 18mm lens on the Canon..."