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Ground or frosted glass is widely used as a weather- and heat-proof light diffuser in ambient lighting, namely on glass covers or enclosures for lamp fixtures, and sometimes on incandescent bulbs. Its functions include reducing glare and preventing retinal damage by direct sight of the lamp filament. This hides unsightly details of the lamp and ...
Basic view camera terminology. A view camera is a large-format camera in which the lens forms an inverted image on a ground-glass screen directly at the film plane. The image is viewed, composed, and focused, then the glass screen is replaced with the film to expose exactly the same image seen on the screen. [1]
Monolith, the Face of Half Dome, Yosemite National Park, California is a black and white photograph taken by Ansel Adams in 1927 that depicts the western face of Half Dome in Yosemite, California. In the foreground of the photo, viewers are able to see the texture and detail of the rock as well as the background landscape of pine trees and the ...
The smallest photography TLR camera using 35 mm film is the Swiss-made Tessina, using perforated 35 mm film reloaded into special Tessina cassette, forming images of 14 mm × 21 mm. Goerz Minicord twin lens reflex made 10 mm × 10 mm format on double perforated 16 mm film in metal cassette. 6 Element Goerz Helgor F2 lens, metal focal plane ...
In photography, a viewfinder is a device on a camera that a photographer uses to determine exactly where the camera is pointed, and approximately how much of that view will be photographed. A viewfinder can be mechanical (indicating only direction and approximate view), with simple optical components, with precision optics and optical functions ...
The adjacent normal lung tissue with lower attenuation appears as darker areas. Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs. It is typically defined as an area of hazy opacification (x-ray) or increased attenuation (CT) due to air displacement by fluid, airway ...
Kirlian photograph of two coins. Kirlian photography is a collection of photographic techniques used to capture the phenomenon of electrical coronal discharges.It is named after Soviet scientist Semyon Kirlian, who, in 1939, accidentally discovered that if an object on a photographic plate is connected to a high-voltage source, an image is produced on the photographic plate. [1]
Deardorff. L.F. Deardorff & Sons Inc. was a manufacturer of wooden-construction, large-format 4"x5" and larger bellows view camera from 1923 through 1988. [1][2] They were used by professional photographic studios. [3]