The shutter opens when the release is pressed and closes when it is pressed again. Magnified view of Kodak's patented T-grain emulsion Telephoto lens compact lens construction which provides a long focal length with a short back focus.
Test strip is a trial and error method of calculating exposure in photographic printing.
A number of exposures are given to a strip of emulsion, over important areas of the image to help judge the correct exposure in the final print. Texture is broadly defined as the surface character of an object. Thick negative is a antique term used to describe a dense negative. A thin negative appears less dense than a normal negative. Time Exposure A comparatively long exposure made in seconds or minutes.