Photonics Dictionary


A photographic enlarger with a fixed negative plane and a fixed paper plane, often using a roll of paper that is advanced automatically between exposures. The lens is interchangeable to suit a range of common negative sizes. Printers often have a photocell that sets the exposure automatically in accordance with the average density of the negative. In color printers the three colored layers are exposed separately in succession, each metered by a photocell covered with an appropriate filter.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.