![]() This data is transmitted along with the image, whether JPEG or RAW, and can be either manually or automatically erased in Canon's DPP software. This Dust Delete Data image is analyzed in-camera, and the location and size of any remaining dust is added to any subsequent pictures taken. ![]() A simple test shot of a plain, white object can be taken, using a menu setting. The EOS 50D also has a coating on the front surface of the low-pass filter, to increase its resistance to dust sticking to the sensor.ĭust that may still remain on the front of the sensor can also be erased with software included in Digital Photo Professional (DPP) Version 3.3 or later software. The low-pass filter at the front of the sensor shakes off dust automatically with ultrasonic vibrations, removing dust from the sensor assembly. ![]() To combat this, the EOS 50D features a Canon-designed Self Cleaning Sensor Unit. A key element of minimizing dust is preventing it from clinging to the front surface of the imaging sensor.
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