If that's not a question for SimonRL, I don't know what is! :D
I claim no special powers in camera cleaning 😉
If there's mud behind the screen it sounds like it'll need to come to pieces. Hopefully there's a clear screen in front of the screen itself and the mud has just got between?
As long as the mud/water hasn't got into the workings it could just be a case of wiping it down and thoroughly drying it out. If you can get hold of some dessicant (let me know if you want some) then once cleaned, seal the camera in a bag with the dessicant and a moisture card and leave it for as many days as it needs to dry completely. This is much friendlier than cooking it!
If the mud/water has got into the workings to the extent that buttons and dials are doing strange and random stuff then it's going to need need a good clean. As wierd as it sounds, washing (just the) dirty parts down with a soft bristle brush and distilled water is probably a good approach, then dry it as above.
The 8400 I resurrected was done that way, except it was that filthy it needed foam cleaner first 😮 The (newish) one I was using on Saturday packed up half way through West mine with grit in the mode dial so that's going to have to come to pieces as well :(
If following any advice I has dispensed here bear in mind:
- the camera may never work again
- don't put any batteries anywhere near the camera until it's absolutely 100% dry, and take huge care with the capacitor for the flash
But if he suggests using the washing machine, ignore him: he has a history of putting things into the washing machine that really should not be put in washing machines... :lol:
Nothing wrong with washing machines for boots, oversuits, hemets, gloves and wellies. Do not wash aquapacs 😉 I've also (accidentally!) washed both a Sten and a Fenix P3D with no ill effect at all :angel:
my orders are to sit here and watch the world go by