[David A. Goldfarb]

When I do it, I usually record the date, exposure or filmholder number, a description of the location and subject, camera, format if it's a camera that shoots more than one format, lens, filters used, aperture, shutter speed, film, developing instructions for film speed and contrast (like "Efke 100, EI 50, ABC Pyro +1" or "TXP, EI 640, Acufine"). I like to use unlined Moleskine notebooks. If the exposure is complicated, I might write down the bellows factor and reciprocity factor, just to be sure I haven't forgotten something.