Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.
Benefits of registering include
Ok, when taking a macro, how do I manual focus using the canon housing without a thingy to run the wheel?
thanks
Similarly.... is there any way I can control aperture and shutter speed on Av and Tv priority modes? Without the thingy to control the wheel?
Basically "Hold down button 1 then push buttons 7 or 9 to change value." is equivalent to turning the wheel in all cases.
If you haven't already, I would suggest setting up pressing button one by itself to give you a custom white balance.