| Diopter | The degree to which the light ray bundles leaving the viewfinder converge or disperse. The standard diopter of all EOS cameras is set at - 1 dpt. This setting is designed to allow the finder image to appear to be seen from a distance of 1m. Thus, if a person cannot see the viewfinder image clearly, the person should attach to the camera\'s eyepiece a dioptric adjustment lens having a power which, when added to the viewfinder\'s standard diopter, makes it possible to easily see an object at one meter. The numerical values printed on EOS dioptric adjustment lenses indicate the total diopter obtained when the dioptric adjustment lens is attached to the camera. |
