Hi, I'll be on a 3-day basking shark trip in August and am looking for tips on photography. I'm planning to utilize the 8mm fisheye on my Olympus setup for majority of the UW work, as it's the widest lens I've got. I assume the 14-42 zoom would not be sufficient in capturing these big beauties. However, would it be advantageous to acquire a wide-angle zoom like the 9-18?
Also, I've never done a tour like this. I am considering bringing two cameras, one at the ready, loaded in housing, to go overboard with when something awesome swims by the boat, and a second body with a long telephoto to capture breaching animals and such while in the boat. Does that make sense or will I not be frantically switching between topside and underwater subjects? Packing light is a goal as this is part of a larger Scotland/England trip, so if I can get by with one camera to use that would be a big plus.