You can eliminate cat pee by putting him/her in a dishwasher for a couple of hrs.
As for smelly cameras, one fix is to wipe it, inside and out, with a rag sprayed with WD40 (or turpentine). Then wipe the excess...repeatedly. This also works with smelly dogs and your Uncle Fred.
Manly men shoot rangefinders, carry duct tape, Vise Grips, and WD40 at all times.