Can Canon SLR peak focus be seen in the viewfinder?

You can't see the peak focusing effect of Canon SLR in the viewfinder.

According to the official instructions, you should watch it in liveview mode. The principle of liveview is to intercept the signal on the sensor and display it on the LCD synchronously, while EVF is the optical signal intercepted behind the lens. Although it is more original, it is impossible to achieve peak focusing without processing.

Canon itself has no peak focusing function. It is a plug-in provided by a third-party magic lamp. When used, the focus will be marked with the selected color on the shooting problem, which is very accurate and is loved by many photographers. At present, only some models of Canon can be used.

The performance of the magic lamp is not stable enough, which may lead to huge power consumption and even the danger of burning the camera motherboard.