Mirror (for lighting)

EN: Mirror up mode (mup)

Fotografie

Choose this mode to minimize camera shake in telephoto or close-up photography or in other situations in which the slightest camera movement can result in blurred photographs. This is usually done while using a tripod for best results.
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Mirror lens

Lens with an internal mirror or mirrors that are usually curved, enabling comparatively-light lenses that are shorter than similarly-designated long focus lenses.

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Mirror lens:

A lens where the light path is bent and reflected internally to increase the focal length of the lens a simplified system that is usually less expensive than conventional super-telephoto (300mm and up) lenses.

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Mirror lock or mirror lock-up

Found in a camera with the ability to keep its mirror in the up position to prevent vibration from mirror movement in a long exposure. Locking up the mirror may also permit certain specialty lenses to be attached that would otherwise come into contact with the mirror, and in some digital cameras, keeps the mirror out of the way when cleaning the image sensor.

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Mirror (for lighting)

An ancient and honorable way to stretch your lighting resources and the sun s reach. For table-top shots keep a few shaving mirrors handy for accents and Kicks. A little tape applied to the mirror can shape the reflected light beam; dulling-type spray can diffuse it.

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Mirror (for shooting)

See Reflections.

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Mirror box

Internal area of DSLR housing mirror, open area behind lens mount, in front of sensor. Viewable when lens is removed.

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Mirror cutoff

A slight darkening of the edge of the viewfinder image due to the technical limits on the size of the reflex mirror. It may occur when you re using long telephoto lens or a bellows. It is visible in the viewfinder, not in the picture.

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Mirror lockup

A feature that allows you to manually raise and lock the reflex mirror in a single-lens reflex camera. Useful for preventing camera shake caused by mirror movement.

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Mirror up mode

Mode featuerd in select D-SLRs. Press the shutter-release button once to raise the mirror, again to take photograph (shutter will be released automatically if shutter-release button is not pressed for 30 seconds after mirror up). The mirror will be lowered after the shutter is released. Choose this mode to minimize camera shake in situations in which the least camera movement can result in blurred photographs. Note that autofocus, metering, and framing can not be confirmed in the viewfinder while the mirror is raised.

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Mirror lens

This is technically known as a catadioptric lens and has an unusual construction of mirrors and lens elements. As well as glass elements there are mirrors at the front and rear to fold the light as it enters the lens. Although this results in a body that s a little wider than normal, advantages are: 1. The lens is usually only half the physical length a regular lens of the same focal length would be, and 2. It s much lighter. Disadvantages are: 1. There is no adjustable aperture, so the user is forced to take all of his photos at a permanent aperture setting, usually f8, but sometimes even f11, which means you need plenty of light for taking photos; 2. Practically all mirror lenses use manual focus; 3. Highlights that are out of focus are, in some situations, shown as doughnut shapes (although some actually like this characteristic and consider it an advantage, not a disadvantage). .

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Mirror lens (reflexlens).

Lens in which some (usually two) of the elements are curved mirrors. This constructionproduces comparatively lightweight short fat long focus lenses. They cannot be fittedwith a normal diaphragm.

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Mirror lock

An extra feature found on only a few cameras that is used to lock the viewing mirror in the up position while the shutter is fired. The benefit is almost no vibration as well as the ability to keep up with an ultra-fast motor drive. This feature tends to be more common on medium format cameras because the mirror is larger and creates more vibration as it bounces out of the way of the film plane. .

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