JohnA

I see there are a couple of choices in that lens. Am I correct in assuming that the AT-X 107 NH Fisheye 10-17mm f/3.5-4.5
is a better choice when compared to the 10-17mm f/3.5-4.5 AT-X 107 AF DX

for my present body as well as a future upgrade?
Thanks- John

Wow!. That's a pretty compelling review. Topside I often seem to use a high end point and shoot.
I very much apreciate everyones input. It's really helped me sort through some of this. I've had some good results with my 10.5, but sounds like there won't be a sacrafice with the 10-17. That's reassureing.
Thanks Again - John

Sounds like the nikon 12-24 might be better then the tokina 12-24 in the corners, however the tok 10-17 seems to be a solid performer in most everyones tool box. Sort of makes sense in that I'd think it would be easier to get good optics in a range of 7 rather then 12. Havent tried a diopter yet. I know there's a depth of field loss, however in wide I'd think it more manageable. I could certainly use it sometimes with my 60 as well. I like my 10.5, but in a close situation with lots of divers a zoom could be handy to have I've found.
I too am very happy with the suppourt I've gotten from Aquatica. Basd on that alone I plan on sticking with them when I do upgrade.
Thanks- John

Thank you both for the input. Hadn't thought too much about what I might upgrade to other then something with a bigger screen and autofocus video. Probably won't do that till 2014 or so. I use an 8" dome presently. Is there much diference in the image quality between the 10-17, and the 12-24 Tokina's? Kind of think that since I have the 10.5 prime lens, that the extra range of the 12-24 might be more usefull although the 10-17 seems to be really popular. Is there a lens that would serve me well presently, and still be a good one to have if I did wind up getting an fx camera? sort of thought I'd end up getting a d7000 or whatever replaces it by then, but figured I look into my next set up more when the time comes. Sounds like the the Nikon brand lensees aren't necessarilly any better, or am I reading too much into this?
Thanks Again - John