The photos taken under the 5300K photographic lamp are red and warm. What happened? I use Nikon D80.

It should be that your white balance is incorrect. High-end digital cameras usually support ADOBE RGB color gamut, which is wider than SRGB color gamut. If a wide color gamut display is used, the colors of digital photos with ADOBE RGB color standards can be accurately displayed on the display. If you use an ordinary SRGB monitor, the color may be lighter.

If the white balance of the camera is inconsistent with the color temperature of the light, there will be color difference. White balance uses Kodak's standard whiteboard, and white paper is not allowed, because the white of paper is very inaccurate, and the white of white paper is different.

Doing white balance is to manually focus the correct exposure of the full whiteboard under the customized white balance menu to shoot ambient light, and it is good to prompt success.

Setting it to white balance will get correct color reproduction. In some shooting occasions, it is more appropriate to use a lens cover called white balance to do this white balance.

The reasons are light (reflected light from the environment), white balance of the camera, lens of the camera, photosensitive element of the camera, soft (real) parts of the camera, and color cast of the display (a very serious and common phenomenon, which is not paid much attention to). Poor quality and color filter may also cause color difference.