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8 relations: Aperture, Astrophotography, Bahtinov mask, Diffraction, Focusing screen, Hartmann mask, Orientation (geometry), Telescope.
Aperture
In optics, an aperture is a hole or an opening through which light travels.
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Astrophotography
Astrophotography is a specialized type of photography for recording photos of astronomical objects, celestial events, and areas of the night sky.
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Bahtinov mask
The Bahtinov mask is a device used to focus small astronomical telescopes accurately.
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Diffraction
--> Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit.
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Focusing screen
A focusing screen is a flat translucent material, either a ground glass or fresnel lens, found in a system camera that allows the user of the camera to preview the framed image in a viewfinder.
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Hartmann mask
Hartmann mask is a tool to help focusing telescopes, mainly used by amateur astronomers.
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Orientation (geometry)
In geometry the orientation, angular position, or attitude of an object such as a line, plane or rigid body is part of the description of how it is placed in the space it occupies.
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Telescope
A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).
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