I'm looking at a selection of backs at the moment, amongst them the 10 and 12.
I'm aware that on these Leaf backs, the battery attaches to the bottom of the back, and so would hang below the bottom of the camera.
One use for the back that I will be getting will be for shooting large panoramas. Ideally, to do this, I need to attach a rail to the base of the camera, such that the back of the rail is level with the back of the back.
See here for how the rail attaches to a DSLR:
(check the bottom left image in the main graphic towards the top of the page, and the requirement will become clear)
Now, it's not absolutely essential that I am able to attach the rail in this way, but it would be preferable.
I'm assuming that with the battery attached, this would not be possible.
Is there an alternative (portable) way of powering these backs without needing to attach the battery to the base of the back?