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Additionally, Tele Vue eyepieces are well corrected for most aberrations, providing edge to edge pinpoint stars, and are well suited to use in popular "fast" telescopes. The most expensive Tele Vue eyepiece is the Ethos line, which consists of eight eyepieces known for excellent image quality and ultra-wide 100 degree fields, which can retail ...
In February 2004, a scrapped F/A-18 Hornet fighter jet was listed on eBay by Mike Landa, of Landa and Associates, with a starting bid of $1 million. He was the legal owner of the plane after purchasing it from a scrap yard and also offered to have it restored to flying condition for a Buy It Now price of $9 million.
Tasco's telescopes have a reputation as entry-level equipment. [2] [3] It is one of several companies advertising their products based on claims of high magnification, far beyond any attainable usable magnification. [2] Tasco's telescopes tend to be referred to as "department store telescopes."
These are marketed as the ED80 (80 mm or 3-inch (76 mm) objective at f/7.5), ED100 (100mm or 4-inch (100 mm) at f/9) and ED120 (120mm or 4.7-inch (120 mm) at f/7.5). Orion also sold binoculars for astronomical and terrestrial observing, microscopes and monocular spotting scopes of the type used by birdwatchers and marksmen .
The Meade Instruments (also shortened to Meade) was an American multinational company headquartered in Watsonville, California, that manufactured, imported and distributed telescopes, binoculars, spotting scopes, microscopes, CCD cameras, and telescope accessories for the consumer market. [2]
One man’s trash is very often another man’s treasure on eBay, which has been selling head-scratching items since 1995. But eBay is a place for a lot more than just cheap, used curling irons ...
Star Diagonal: Used to change the angle of the light coming out of a telescope, for easier viewing. Herschel Wedge: Similar to a star diagonal with a wedge-shaped unsilvered prism reflector that reduces incoming light by up to 95% for solar viewing. Coma corrector a correcting lens used to reduce coma distortion in fast reflecting telescopes.
The telescope is more a discovery of optical craftsmen than an invention of a scientist. [1] [2] The lens and the properties of refracting and reflecting light had been known since antiquity, and theory on how they worked was developed by ancient Greek philosophers, preserved and expanded on in the medieval Islamic world, and had reached a significantly advanced state by the time of the ...
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3579 S High St, Columbus, OH · Directions · (614) 409-0683