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Vortex Optics 10 x 28 Diamondback Series Waterproof Roof Prism Binocular with 5.7 Degree Angle of View

vortex Lighting – click on the image below for more information.

• Phase corrected prisms (increasing light transmission by 7%) deliver sharp, greatly contrasted images.
• BaK-4 prisms provide sharp images from one edge of the broad viewing field to the other.
• Fully multi-coated optics increase light transmission for higher image quality in all lighting conditions – enhanced for 2009.
• Complete waterproof protection keeps dust and water out of the optical system with tight O-ring seals.
• Complete fogproofing of internal lenses with argon-purged optics presents clear views in spite of sudden temperature changes.

vortex Lighting

With Vortex compact 10×28 Diamondback binocular, light doesn’t find its way in so much as it’s grabbed, bound, gagged and made to serve your will. You can trust the rock-solid performance of the Diamondback binocular across rocky, sand-carved terrain, or into the high timber of the rockies. The Diamondback’s protective rubber coating gives you a sure grip that is easy to handle, even as fingers grow numb in the cold. The retractable Diamondback eyecups feature a soft, tapered style for a more na

Vortex Optics 10 x 28 Diamondback Series Waterproof Roof Prism Binocular with 5.7 Degree Angle of View

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Image by Bert Heymans

Butler summer ball lighting

just a quick video of the lighting at josephine butlers summer ball.
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Tips:

Question by watari777ph: What is optical vortex mask?Will this device will help astronomers to study planets beyond the sun?
For many yearas now, many astronomers have wanted to view these planets directly beyond the sun. With naked telescope, this is a tough task. Viewing a planet next to a bright star like our solar systems own Sun is almost impossible. It’ like trying to spot a lighted match held up next to a car’s high beam.

Best answer:

Answer by Twizard113
An “optical vortex mask” is a thin, tiny, transparent glass chip that is etched with a series of steps in a pattern similar to a spiral staircase. It allows astronomers to cancel the surrounding starlight thus enabling them to better see the less luminous planets around other stars. For more information on how it works, click on the following link:

http://www.spacedaily.com/reports/Glass_Chip_Cancels_Starlight_To_Reveal_Exoplanets.html