Today we will continue our Photography Glossary.
Gamma– Gamma is a measure of contrast. The higher the gamma value, the more contrast the material (photographic material) will have.
Ghost Images– These are bright spots of light that appear in the viewfinder or the final photograph. They usually take on the shape of the aperture. This tends to happen when the lens is pointed towards a bright light.
Grain- Grain is tiny metallic silver deposits. Tht random nature of these deposits can lead to graininess.
Graininess- Sand or granular appearance of a photo. This effect tends to be more pronounced with faster ISO speeds and enlarging.
Highlights- These are small bright areas in an image. They should be white, but sometimes this term describes the lightest tones of a photo.
Hot Shoe- This has an electrical contact that fits with the mounting foot of a flash. It allows the camera to fire the flash at the right time.
Infinity- this is infinite distance. In photography, it’s used to describe a distance so great that an object in that distance will be reproduced sharply if your lens is set to infinity (one focal length from the film).
ISO- This is the international standard that represents the sensitivity of the film. An ISO speed of 100/21° would be an ASA 100. The higher the number, the more sensitive the film is.
Kelvin- this is a scale that measures color temperature. 5000 K refers to daylight.
Lens Shade or Hood- This is a collar that is placed at the front of the lens in order to prevent unwanted light from hitting the lens and causing flare.
Lens Speed- this is the largest opening (smallest f number) that a lens can be set at. A fast lens allows more light and has a larger opening. This speed is determined by the maximum aperture in relation to the focal length. In general, the larger the focal length of the lens, the smaller the aperture should be, in order to have a fast lens.
Part 1: A
Part 2- B&C
Part 3: D&E
Part 4: F
Part 5: F (cont)
Part 7: M-P
Part 8: Q-Z