Exact(5)
It's there in parts, seen through a dark lens and now more of a cautionary tale.
A dark (lens cap) and uniform white target (99% diffuse reflectance Spectralon panel, Labsphere, NH) is collected and a table of offset and gain per pixel is generated by the camera software and stored.
From his early experiments with expressionism and myth to his late explorations of struggle within his own family, he viewed life through a dark lens.
For these few, "murder" has become a dark lens through which they view all of contemporary American society--a poisonous paradigm that leads them to believe the only way to end this new holocaust is to refresh the tree of liberty with the blood of patriots.
For bright conditions during the day, you want a dark lens or a mirrored lens so that it protects your eyes from the sun.
Similar(55)
During the Tigers Champagnee celebration in Oakland, he wore specialized goggles: one dark lens, one light lens.
Doctors warn that they may expose the eyes to more radiation than no sunglasses would, because the pupil dilates to compensate for the dark lens and thus allows more ultraviolet rays to enter.
Far beneath the surface of nytimes.com lurk the databases — databases of articles, metadata and images, databases that took tremendous effort to develop, databases that the world only glimpses through the dark lens of HTML.
Also on display was Nature's Fly-Trap, a carnivor- ous plant whose leaves devour flies and mosquitoes; a collection of clay skulls sprouting green grass, a young lady demonstrating a reducing device, Flip-Up Flip-Down Sun Spectacles, designed to do away with the physical inconvenience of having to take sunglasses off, and Sun-Slatz, in which the dark lens is replaced by tiny Venetian blinds.
Flip the dark lens or full face helmet down before you strike the electrode against the practice metal.
Put on your safety glasses and welding hood (or helmet, as it is sometimes called), with the dark lens flipped up to allow you to see.
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