Is the film too dark and overexposed?

Too dark film is not overexposed, and very bright film is overexposed.

If the environment is too dark and the photos are dark and can't truly reflect the color of the scene, it is underexposure. For example, when taking color negative film, the printed photos are light in color and have serious color cast.

When shooting color reversal film, the developed image has low density and color saturation. For the image sensor of digital photography, overexposure will cause the loss of picture details and highlight overflow, which can not be repaired by post-production.

Judgment mode

Taking photos with a digital camera, although we can preview the photos through the camera's LCD screen, the LCD screen often has only a few hundred thousand pixels, so it can't fully display the details of the photos.

Especially because LCD is not so sensitive to light, it is difficult to see the photos clearly through LCD even if they are overexposed or underexposed. Here we can use the built-in "color scale display" function of many digital cameras to judge whether the photos taken are exposed correctly.