Aquatica's current housing for Canon 1DS MK3 fits Canon 1D MK4

If you already own Aquatica's housing for the Canon 1DS MKIII and are looking to upgrade to the Canon 1D MKIV, you will not need to buy a new housing.

Access to all function and access buttons, including video, are available without modifications according to Aquatica.

can anyone say if the FEL button on this Aquatica housing can be pushed without taking your hand of the handle?

Darren,

The FEL button is on top next to the ISO button. Not easy to press w/o taking your hand off the handle.

Cheers

James