Designed for specific Canon camera models, the Canon Canolite D flash is an automatic camera flash that is dependable and automatic. This Canon camera flash is easily attached to the EX Auto, Canonet, and Conodate E series of Canon cameras, by sliding it into the handy shoe mount. When the camera is set to auto, the Canon Canolite D flash will switch to the camera's automatic flash controls. This means that this smart automatic camera flash will assign the correct f-stop according to the camera's shooting distance. This Canon camera flash removes the need to worry about guide numbers or to manually adjust the flash or camera for shooting distance. The flash is operated by battery, and it will flash approximately 100 times per set of two AA batteries. The Canon Canolite D is the perfect flash for specific cameras, allowing photos to be taken with perfect exposure each and every time.