Just realised RS USB connector is not good. Explain later, don't waste time looking into it.
edit: I am back, sorry about the cryptic message, I just didn't want you to waste any time on those connectors.
The RS connector has two parts. The actual plug is removable from the round housing - it is just a push-fit and it is not sealed. The waterproof rating applies only if a cap is used, or a matching connector is connected into the USB plug. The matching connector has a housing which screws onto this connector's housing. So, unless we want to keep the matching connector connected at all times, i.e. have a long cable going from the camera at all times, the plug is not good.
The
Altronics connector is filled with epoxy and has pins coming out on the other side. A bit more soldering but it should be OK to use.