Exposed to moisture my 3 month old Nikon D800 had algorithm seizures and random drive events making it unusable, but Nikon claim: "Despite its light weight and compact size, the D800 is as tough as Nikon’s professional single digit cameras, with extensive weather and dust sealing throughout to ensure you can keep working when the going gets tough.
Build quality: as reliable on the road as it is in the studio, the D800 boasts a weather- and dust-sealed magnesium alloy body that weighs in at approx. 10% lighter than the D700. "
So how come when the weatherproofing fails to keep water out they wish to charge me over £100 to fix it. ?If I'd wanted a full frame DSLR reputed to break down as soon as it encounters moisture I'd have bought a Canon 5D!