03-15-2011, 06:56 PM
Looks just like the sensor dirt on my Canon 5D.
I don't know if it's dust or oily deposits, but most of mine goes away when I do 'manual cleaning' and give the sensor a good blow out with a hand blower. Unless you are a sensor swab freak or you don't actually take your camera out of the bag except in sterile environments, these marks are quite normal at f11 upwards. I've heard that some cameras come out of the factory with very dirty sensors, so maybe it's always been there and you never noticed it before.
If they don't go away after a good blow out you can get the sensor cleaned professionally and it should fix the problem.
I don't know if it's dust or oily deposits, but most of mine goes away when I do 'manual cleaning' and give the sensor a good blow out with a hand blower. Unless you are a sensor swab freak or you don't actually take your camera out of the bag except in sterile environments, these marks are quite normal at f11 upwards. I've heard that some cameras come out of the factory with very dirty sensors, so maybe it's always been there and you never noticed it before.
If they don't go away after a good blow out you can get the sensor cleaned professionally and it should fix the problem.