Canon EOS 4000D Instruction Manual page 141

When <g> is displayed in white, it indicates that the Live View image

brightness is close to what the captured image will look like.
If <g> is blinking, it indicates that the Live View image is displayed at

a brightness that differs from the actual shooting result because of low- or
bright-light conditions. However, the actual image recorded will reflect the
exposure setting. Note that noise may be more noticeable than the actual
image recorded.
If flash is used or bulb exposure is set, the <g> icon and histogram

will be grayed out (for your reference). The image will be displayed on
the LCD monitor at the standard brightness. The histogram may not be
properly displayed in low- or bright-light conditions.
Final Image Simulation
Final image simulation is a function that shows the Live View image as
it will look with the current settings for Picture Style, white balance, and
other shooting functions applied.
During shooting, the Live View image will automatically reflect the
function settings listed below. However, it may be slightly different from
the resulting image.
Final Image Simulation During Live View Shooting
Picture Style

* All settings such as sharpness, contrast, color saturation, and color tone will
be reflected.
White balance

White balance correction

Ambience-based shots

Lighting/scene-based shots

Color tone (in <P> mode)

Exposure

Depth of field (with C.Fn-9-4 set and <0> ON)

Auto Lighting Optimizer

Peripheral illumination correction

Highlight tone priority

Aspect ratio (shooting range confirmation)

A Shooting with the LCD Monitor
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