As we enter the adolescence of the digital camera age after spending the last 10 years in childhood, one of the biggest weaknesses of digital imaging with DSLRs is finally starting to be addressed by the camera manufacturers. This weakness is sensor contamination, which results in undesired spots on photographs due dirt blocking light from properly illuminating the pixel sites beneath the dirt. More correctly, it is the filter in front of the sensor that is getting contaminated. This contamination can be from many sources including dust particles, particles shed by the camera through its mechanical motions, particles left over from the manufacturing process that have found its way to the sensor, lubricants used in the building of the camera, environmental contamination, human skin flakes, body and lens cap plastic shards or any of a myriad of other sources.