The Ilford Manual of Photography

acid angle aperture appear base bath blue brightness bromide camera cause Chapter characteristic clear colour containing contrast correct curve density depends depth desired detail diffuse distance edges effect employed emulsion enlarger equal example exposed exposure factors field Figure film filter fixing focal length focus focusing front give given glass grains greater green hypo Ilford illumination important increase lamps lens lenses light lines marks materials means measure method minutes mount negative normal object obtained ordinary paper photographic picture placed plates position possible Potassium practice produced range reduced referred reflection relative removed result scale sensitive shadows shutter silver slide Sodium solution sometimes speed stop suitable surface Table tank temperature termed tone usually varies washing