SLR camera lens out of black spots
This is a typical sensor into the gray
It should be replaced when the lens into the camera caused by dust it
Need to blow the ball to blow the dust on it
You try to set the camera to the cleaning mode (refer to the manual), then blow the balloon
Into the menu, find the cleaning sensor, select the manual cleaning sensor, "card" soon as the reflector board up, see is the sensor, then use the air blowing, pay attention to do not touch the sensor.
If there is no effect, then use high pressure trachea (market available) or go after the sale.
Two cases!
First: coms on the dust!
Second: lens lens on the gray!
Identification is very simple, for a lens to see if the same location there, then there is dust on the fuselage COMS;
If there is no dust after the lens, then it is the lens of the dust on the lens!
No matter what the situation, to sale, all get!