As I've understood there has been alot of debating about wide-angle lenses and most pros tend to choose the nikkor 12-24.
But if you don't want to spend a fortune, which is the best choice? The Tokina 12-24 or the Sigma 10-20? Above water the sigma has superior sharpness, but is it perhaps useful to have the extra 20-24 mm UW?
I use an Ikelite housing for my D300 with an 8" dome and apparently the zoom ring doesn't work with the Sigma (but I guess you could always put some tape around the lens).
/Sebastian
As I've understood there has been alot of debating about wide-angle lenses and most pros tend to choose the nikkor 12-24.
But if you don't want to spend a fortune, which is the best choice? The Tokina 12-24 or the Sigma 10-20? Above water the sigma has superior sharpness, but is it perhaps useful to have the extra 20-24 mm UW?
I use an Ikelite housing for my D300 with an 8" dome and apparently the zoom ring doesn't work with the Sigma (but I guess you could always put some tape around the lens).
/Sebastian
Not knowing about the tokina´s underwater behaviour (but above water is good), knowing that nikon´s 12-24 gives a lot of problems when trying to get the right port-ring configuration (and corners always seem to be soft anyway), I would recommend you the sigma 10-20. You should be very careful with the zoom ring and housing because it is a "fat" lens. You could also look at the newer nikon 10-24 dx lens.
Good luck!
Close-focus distance of the lens can be a factor in a lens's performance underwater, due to the way dome port optics work, and in this case the sigma 10-20mm and the new nikon 10-24mm have the closest minimum focusing distance.
good luck with your new lens
Scott
may be u can consider Tokina 11-16mm
on land, i think the Tokina 11-16 has the best Image Quality across the frame (at least when stopped down to f4 or so) combined with the fast focusing of f2.8 and the wider aperture available if you really need it
underwater, i'm still looking for the right combination of port extension and diopter to get decent results at the edges - but i'm not sure that this is any different than with other rectilinear wide angles
UW, i'd go for the fisheye if i were to do it again (or wanted to carry two lenses when i travel - i really like to have a wide angle that i can use on land and UW as most of my UW shooting is macro)
Thanks for your the info!
I think I will go for the sigma 10-20. The new nikkor 10-24 seems nice, but a bit pricey.
I agree that a fisheye would be the best, but since I still shoot more over water than under, it's hard to motivate.