Courty,
I haven’t tried one yet – to busy trying to get my greasy mitts on the DSIII .. 😉
35mm is not wide enough for shooting on boats IMO, not even close.
Mind you, that would be for publishing shots, for personal stuff it would be fine for man with fish shots and some limited landscape stuff.
If you’re looking at adaptors make sure they’re quick & easy to use – you wouldn’t want to be stuck with it on or off while trying to shoot.
www.dsaphoto.com
A picture is thousand words that takes less than a second while a thousand words is a picture that takes a month.