Although it is stated that the Sigma 10-20mm lens for Canon will not work in an Ikelite port and allow the use of the zoom ring. This is not true, I have been able to configure it easily to use either the focus ring or the zoom ring of the lens using the provided zoom gear kits ...
I also did a setup with the Sigma 18-55mm f/2.8 and it worked perfectly. I'm liking the setup. Now I just need to go do some buoyancy tests to determine how much weight this is going to add. I can barely HOLD IT right now.
