If rumours are to be believed, then Nikon's forthcoming announcements might provide a uniquely flexible situation for the Nikon using underwater photographer.
It would be quite a remarkable state of affairs if both the D3X and D700 (or D10, what ever it is called) both fitted in existing housings (D3 and D300 respectively). Perhaps the greatest consequence would be the real different choices this offers the UW photographer with the same housing.
Canon pro users have had this for a while, although I have never really seen the full UW value of the 1D series if you have a 1Ds series camera. After all the main use of high ISO underwater is for big WA shots in low light. And the 1.3 crop of the 1D series kind of negates this advantage with the loss of angle of coverage and no specialist 1.3 crop wide angles.
Nikon users also got it with the D200 and Fuji S5 - although I think most D200 users who tried the S5 decided it was too similar to both with. A few fell for the S5, and therefore didn't bother with their D200s any more.
Actually the more you think about it, the harder it is to really see a good benefit of the two cameras options.
The D3/D3X could to be interesting. The D3X providing the high res, low ISO camera. And the D3 providing an option for high ISO for available light wrecks in dark waters. I struggle to see many other uses for the D3 over a D3X. And unless you do a lot of low light, available light the D3 is an expensive backup.
The D300/D700 might be the most interesting. Two 12MP bodies, one FF, one DX. But again when would you use the FF? Wide angle fisheye, perhaps. But I'd rather have a Tokina zoom. Wide angle rectilinear, unlikely unless you like smudged corners. Macro. Possibly with the 60mm for a wider macro view. But certainly not for macro close to 1:1 where the extra DOF of DX will win. I have yet to see a DX macro shot ruined by diffraction, but I do see FX macro shots suffer a lack of DOF. So again it would be FF for dark, deep wrecks. DX for everything else?
That of course, presumes that both pieces of vapourware fit existing housings. Hopefully we will hear soon.
I certainly find the idea of a backup camera with different skills very exciting. But particularly with the D300, I can't help concluding that it will be the 12MP FX camera that will be the backup to the cheaper 12MP DX camera. Which seems all wrong. ![]()
Alex