Sorry,please ignore my earlier post.
Light sensitive materials are sampled in a room with yellow lighting. How is it different from normal white light?
Yellow light and white light are different in terms of their spectral composition. White light is a combination of all visible colors of light, while yellow light consists mostly of yellow wavelengths.
To understand the difference, we can examine the concept of color temperature. Color temperature is a characteristic of light sources, measured in Kelvin (K), that describes the color appearance of the light emitted.
White light, typically produced by the sun or certain light bulbs, has a color temperature close to 6500K, which gives it a bluish-white appearance. On the other hand, yellow light, such as that produced by yellow-hued light bulbs or filters, has a color temperature typically below 4000K, giving it a warmer, yellowish appearance. This lower color temperature means that there is a higher proportion of longer-wavelength colors, such as red and yellow, in the light emitted.
When light-sensitive materials are sampled in a room with yellow lighting, the predominant yellow wavelengths can affect the perception and interpretation of colors. If the materials are designed to be evaluated under standard white light, the yellow lighting can potentially distort the colors being observed or photographed. This could lead to inaccurate color representation.
To avoid such discrepancies, it is generally recommended to sample light-sensitive materials under standardized lighting conditions, such as viewing them under consistent, neutral white light sources that provide a higher color temperature (close to 6500K). This helps ensure accurate color perception and assessment.
Therefore, the difference between yellow light and normal white light lies in their different spectral compositions, color temperatures, and potential effects on the way we perceive and interpret colors.