Finally, time for video. I'm photographing grackles with a Canon SX 10 Zoom bought 2007. The processor (?) does not allow enough exposure or color reception to illuminate the black bird against a sky intensity. Would the best of kayak use able video cameras work with that contrast problem ? Is there a helmet adaptable with available zoom ? I'm planning an Alaska trip for humpback whales. Follow with blue whales off Catalina. Camera suggestions ? Links ?