The cassette had a built-in dark slide to prevent stray light reaching the film when the disc was removed.
12.
Its visibility can be greatly reduced by background light such as light pollution or stray light from the Moon.
13.
A black cloth is required to keep stray light out while observing the image on the ground glass focusing screen.
14.
A blanket hangs over their heads, blocking out stray light, and a cheap speaker plays soundtracks at screechingly high volumes.
15.
The source of the stray light was later identified as the fibers of the sunshield, protruding beyond the edges of the shield.
16.
It had a pop-up hood to shield the focusing screen from stray light, as well as a magnifier to help with critical focusing.
17.
VANTA blackbody absorbers are thus useful as stray light absorbers to improve the resolution of sensitive spectroscopes, telescopes, microscopes, and optical sensing devices.
18.
Observatory lore holds that nose grease was used to reduce stray light and reflections in transmissive telescopes before the development of vacuum antireflective coatings.
19.
Auroras, fires, and other stray light have been removed in the case of the " Black Marble " images to emphasize the city lights.
20.
Bogard ultimately finds a Bortle level 1 environment : an environment so perfectly free of stray light that the Milky Way casts noticeable shadows.
