Tokina 10-17 vs. Tokina 11-16

[Cumbo]

I'm upgrading my gear from Canon G1 X to Canon 600D. Can someone tell me why (about) every diver is using Tokina 10-17 lens instead of the Tokina 11-16 which has better aperture (2.8 vs. 3.5 - 4.5)?

The price of the both is about the same, so why go with 10-17? Is it because it gives 1 mm more (1.6 on Canon APS-C sensor cameras) on both wide and tele end?

 

[scuba-suzy]

Because the 10-17 is a fisheye lens which works very well underwater because of the increased distortion of the optics and the close focusing. The 11-17 is rectilinear. I've taken both underwater (Nikon mount though) and whalesharks look very puny with the 11-17. It's good for wrecks though.


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[PHIL RUDIN]

The 10-17 zoom can also be used with a much smaller dome port like the ZEN 100MM which allows you to get much closer v. A 200MM port which would be best for the 11-16 rectilinear lens.

Phil Rudin