Canon engaged with the camera manufacturers developing 4K UHD cameras where the central topic was the quest for genuine 4K resolution. The early work with each centered about benchmarking the latest generation of HD lenses to help identify the various optical performance parameters essential to advancing 2/3-inch lens to 4K UHD image quality. Of particular interest to all of the camera manufacturers were the following:
Cleaning of Camera, Lens and Video Products For the purpose of helping to sanitize your Canon Camera, Lens and Video products, it is recommended that you clean parts touched with the hands such as camera grips, dials and lens exteriors.