The ABC of Photography – Depth of field
Depth of field A measure of how much of a picture is in focus, from the nearest point in the scene to the camera that looks sharp, to the furthermost point that…
The ABC of Photography – Dedicated flashgun
Dedicated flashgun A type of flashgun that’s designed to provide direct one-way or two-way communication with the camera. The amount of dedication varies enormously depending on the flashgun and camera. Increased dedication tends…
The ABC of Photography – Decisive moment
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,…
The ABC of Photography – DC
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…
The ABC of Photography – Daguerre, Louis
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…
The ABC of Photography – Darkroom
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,…
The ABC of Photography – DA
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…
The ABC of Photography – Byte
Byte The standard unit for measuring the memory capacity of digital storage devices. Each byte can have one of 256 different values and is equal to eight bits. Sources: Pixabay, Wikipedia, Susan Wingfield…
The ABC of Photography – Butterfly lighting
Butterfly lighting A technique for lighting portraits achieved by pointing the flash down towards the front of the face and creating a distinctive butterfly-shaped shadow under the nose. A reflector is used to soften…
The ABC of Photography – Burst rate
Burst rate The continuous shooting speed of a digital camera, which enables a sequence of images to be taken in rapid succession, measured in frames per second (fps). The rate can only be sustained for…