The Canon 7D's built-in flash has a guide number rating of 39 feet (12 meters) at ISO 100, translating to a range of about 14 feet at ISO 100 with an f/2.8 lens. That's not quite as powerful as ...
Saturation. The Canon 7D Mark II produces images with fairly typical saturation levels. Reds, oranges, dark greens and dark blues are pushed small to moderate amounts while cyans are slightly muted.