Main article: Projection screen
In most cases this is a reflective surface which may be either aluminized (for high contrast in moderate ambient light) or a white surface with small glass beads (for high brilliance under dark conditions).
A pair of seamless 7×14' rear-projection screens embedded in the walls display a fifteen-minute slideshow of works by exhibiting photographers, intercut with video interviews of the artists.
One or more pieces of optical glass or similar material designed to collect and transfer rays of light to form a sharp image on film, paper or a projection screen.
Sandwiching
Combining two or more negatives or slides to produce a composite image either on one sheet of printing paper or on a slide-projection screen.
Saturation levels
Light intensity that exceeds the maximum level designed for a CCD.
L
Lens
One or more pieces of optical glass or similar material designed to collect and focus rays of light to form a sharp image on the film, paper, or projection screen.
Lens, Adjustable-Focus
A lens that has adjustable distance settings.
One or more pieces of optical glass or similar material designed to collect and focus rays of light to form a sharp image on the film, paper, or projection screen.
Lens aberration ...
lens
one or more pieces of optical glass designed to collect and focus rays of light to form a sharp image on light-sensitive film, paper, or projection screen.
This configuration works like a periscope -- the real image bounces off the lower mirror on to the translucent glass, which serves as a projection screen.
Lens One or more pieces of optical glass or similar transparent material designed to collect and focus rays of light to form a sharp image on the film, CCD sensor, paper, or projection screen.
and more contrasting images than negative films and look sharper as well. To view slides or positive films and in order to see all that sparkle, colour saturation and sharpness, you need to invest in a slide projector and a projection screen.
 See also: Image, Camera, Film, Lens, Light
  
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