On 23/06/2013 04:43, wrote:
I was planning on just returning the camera,
which I still can for a few more days,

but I woke up yesterday,
and the big grey spot was gone, on all new photos!
I have no idea what happened.

I did make a second try to re-clean the front of the lens,
in case I missed something, then testing,
all the pictures still had the spot,

but now it's gone, mysteriously...

marc

Likely the "dirt" - whatever it was - has fallen off the sensor, and
lodged elsewhere in the camera. If you're lucky, it won't come back -
some cameras have a sticky layer at the base of the sensor compartment
to catch such bits.
--
Cheers,
David
Web: http://www.satsignal.eu