What are the keys C 1 and C2 for Canon G 12 camera? What is the asterisk key in the upper right corner of the back for?

C 1 and C2 on the mode dial are user-defined modes, that is, users are allowed to preset a set of shooting parameters (including photosensitive aperture, shutter, focus mode, white balance, continuous shooting mode, etc.). ), and then when they switch to C 1 or C2, the camera will automatically read these settings. It can be said that this can make the user change the shooting mode quickly.

The asterisk key in the upper right corner is the exposure lock key. The camera's metering is constantly carried out according to the change of ambient light. The user measures light in one place and then presses the star key, and the camera will lock the exposure. At this time, when the user adjusts the direction and position of the camera, the exposure prompt of the camera will not change. When reflected in automatic/semi-automatic files such as P, AV and TV, the camera will not change any exposure parameters; When the camera is in M position, the EV value will not change. Press it again to unlock metering.

I suggest you read more instructions. Although it may not be easy to find, the manual will explain any function of the whole camera clearly. In fact, you can think of the instruction itself as a photography class, really.