I noticed a couple of spots of dust and a mark, well since I've had the camera. I can't see properly as it is and now it is becoming irritating to the extreme, like a high pitched grating sound or white noise clandestine figures torture people with and it is driving me crazy.
Blowing on it with a rocket doesn't work and I just stopped short of putting a brush or cotton bud sprayed with lens cleaner on it.
So I had a look on the internet and the only advice I can find is 'don't do it, It is made of aluminium', well I had a Land Rover made of aluminium and you could touch that. So what is the best cleaning method.?