Five-sided prism in SLR cameras that renders a correctly-oriented view of the focusing screen.
Optical device, found on SLR cameras, which corrects the image (reversed by the lens), allowing eye-level viewing and focusing via the viewfinder. (see Finder, Focusing screen,& SLR )
A five-sided prism (obviously!) that provides an eye-level, right-way up, left to right correct view of the subject.
a solid piece of crystal or glass that is more expensive than a set of mirrors, and that also adds weight to the camera body
Suitably shaped prism arrangement built into certain single lens reflex cameras above the ground glass screen to permit observation of the screen image at eye level and to show an upright and right-way round picture.
A pentaprism is a five sided mirror used in most SLR cameras that combined with a reflex mirror and a focusing screen allows through the lens viewing.
The prism that sits on the top of most SLRs. The pentaprism transmits the light reflected upward by the camera's mirror into the camera's eyepiece.
A prism in an SLR camera that allows the photographer to view the image while it is being focused.
optical device, usually fitted on 35mm cameras, which makes it possible to view the image while focusing. A mirror device laterally reverses the image so that the scene is viewed through the camera upright and the right way round.
A pentaprism is a five-sided reflecting prism used to deviate a beam of light by 90°. The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image's handedness) as an ordinary right-angle prism would.