Bracketing is the technique of shooting a number of pictures of the same subject and viewpoint at different levels of exposure. Brightness range is a subjective term describing the difference in illumination between the darkest and lightest areas of the subject. Brilliance is the intensity of light reflected from a surface. It is sometimes an alternative term for luminosity . Built-in meter is a a reflective light meter built directly into the camera so that exposures can be easily made for the cameras position.
Bulk film is film purchased in long lengths.
Used in a bulk camera back or with a bulk film loader. Burning in See Printing-in . Giving additional exposure to part of the image projected on an enlarger easel to make that area of the print darker. Sometimes called printing-in.