Decisive moment The split-second when all the elements of a photograph simultaneously come together. The decisive moment is associated with Cartier-Bresson, who described photography as “the simultaneous recognition, in a fraction of a second,…
DC This features on the range of Sigma lenses that are designed specifically for use with crop-factor SLRs, and which can’t be used with full-frame models. Sources: Pixabay, NASA,Wikipedia, Susan Wingfield Lamar…
Daguerre, Louis Louis Daguerre (1787-1851) was an artist and inventor who devised one of the earliest photographic processes, the daguerreotype, announced in 1839. It was made by coating a silver-plated copper sheet with light-sensitive…
Darkroom A light-tight room for processing and printing Traditional photographs. Negatives are loaded into the processing tank in complete darkness, while a red/orange safelight can be used at the printing stage. Sources: Pixabay, NASA,…
DA Stands for Digital Auto, which features on a range of Pentax lenses that (unlike some earlier ranges) don’t have a manual aperture ring. They have a ‘Quick Shift’ mechanism that enables you…
Brightness range This is the difference between the brightness of the brightest part of the subject and the brightness of the darkest part of the subject. Also known as Subject Brightness Range (SBR). Sources: …
Bridge camera A camera that bridges the gap between compacts and D-SLRs. They are similar in appearance and handling to small D-SLRs, but they have a fixed, usually ‘super zoom’ lens, with some models offering…
A system for increasing the chances of getting the correct exposure by taking a sequence of pictures with a slightly different exposure setting for each. Sources: Pixabay, Wikipedia, Susan Wingfield Lamar High School
Bounding box In Photoshop, a rectangular border around a selected part of an image that can be dragged to transform, rotate, scale or move. Sources: Pixabay, Wikipedia, Susan Wingfield Lamar High School
Bounce flash The indirect flash-lighting technique, where the flashgun is angled to bounce off a wall, ceiling, or another reflector. This scatters the illumination, creating a softer lighting effect. Sources: Pixabay, Wikipedia, Susan Wingfield…