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telephoto lens Dictionary Terms
minimum object distance
Minimum object distance, often abbreviated as MOD, refers to the closest distance at which a camera lens or optical system is capable of producing a sharp and focused image. In photography, this term is commonly associated with the closest distance...
telephoto ratio
In a telephoto lens, the ratio of the overall length to the focal length of the lens. It is generally about 0.8 to 0.9 in...
mirror lens
An image-forming system having curved mirrors in place of transparent glass components. Mirror lenses are commonly used for...
Cooke objective
A telephoto lens form noted for its lack of distortion.
inverted telephoto lens
telephoto lens
A compound lens so constructed that its overall length is equal to or less than its effective focal length.
reversed telephoto lens
retrofocus lens
Also known as reversed telephoto lens. A lens consisting of an ordinary objective with a negative component near its front...
wide-angle lens
A wide-angle lens is a type of camera lens that has a shorter focal length than a standard or normal lens, allowing it to...
(9 results found)
May 2024
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