I just picked up a Pelican 1300 camera case. Pelican cases are hard sided, waterproof, rustproof, crushproof, and they float. This small case will hold (barely) my:

Sony A7r with RRS L-bracket with Zeiss 16-35 mm lens (with hood) attached
Zeiss 55mm f/1.8 lens with hood attached
Cable release
Spare batteries

The case is small enough to fit in a portage pack but I will probably leave mine loose and hand portage it.

I have had several Pelican cases and they are hard core for protection. So if you were reluctant to take your camera into the elements, this is a great option. I bought the yellow color so I could see it easily at camp and on the portage trail.

First accessory I bought for my first DSLR.
Also makes a good step or seat.

butthead

Check out this accessory for Pelican cases. Looks great. I have not received mine yet.

TrekPak

I did receive it and the install was very easy. Oddly, in this small case, there seems to be slightly less room than with the foam. But it is much more functional and I like it. I have all of the same gear in the case as before. The partitions are easily adjustable.