The impact of blue light on black and white imaging

Affects brightness and contrast.

1. Brightness: The brightness of blue light is higher than that of red and green light. Therefore, in black and white photography, blue light will affect the brightness level of the entire scene. When blue light dominates, black and white photos may appear Brighter and higher contrast.

2. Contrast: Blue light and red light have opposite effects in black and white photography. Blue light tends to increase contrast, while red light reduces contrast. Therefore, in black and white photography, blue light may make bright images blur. Areas appear lighter, while dark areas appear darker.