If you’re shooting indoors using the lights in your house, your shots may look orange or red, and lowering the white balance setting on your camera will make your shot look more natural. Most cameras have an automatic white balance setting, which measures the color of the light in the room and changes the white balance setting automatically.You can set your white balance manually, however, because sometimes the camera gets it wrong. To find out how to adjust the white balance on your camera, have a look at the camera’s instructions.
You can get different types of filters for film lights that can change the color and mood of a shot. These filter gels are specifically designed for use with studio lights, so they can withstand high temperatures. Some homemade options may not cope with high temperatures as well and could be a fire risk. Colored filter gel sheets can be bought from camera stores for around $5 per sheet, or you can save money by buying them in variety packs. Some lights come with colored filters.
Here are shots of an actor with and without a blue filter. The blue filter throws a blue light that makes the shot look cold.
Here is a shot of an actor with and without diffusion paper. Diffusion paper designed for studio lights can be bought from camera stores for around $5 per sheet.
Any light you add to a scene needs to have a reason. For example, adding a blue filtered light onto one side of an actor’s face would look odd to viewers unless there was a good reason for it to be there — such as, say, to represent the moonlight shining through the window onto the actor.