Canon 600D looks at the problems in the pictures taken.

Press the "INFO" key in the upper left corner of the LCD screen to switch between different photo browsing modes. The photo browsing mode with waveform chart is to let the photographer see the exposure quality and color reproduction quality of the current photo more intuitively. But it is difficult for beginners to understand those graphics, so it is suggested to press the "INFO" key continuously to switch to the big picture browsing mode.