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Historical Timeline for Telescopes

It seems all the technology for telescopes started back in 2560 BC. Artisans in ancient Egypt polished rocks, glass, and semi-precious stones to make eyes for the sarcophagi. What follows is some major points in the Telescope Mirrors color=#0000FF>Digital Spy Camera Camera Store Slr Camera history of how telescopes came to be today.
In 470 BC, Mozi, a Chinese Digital Telescope philosopher, focused the sun's rays by using concave mirrors.
In 4 BC, Seneca the Younger used water to magnify letters and words.
In 23, Pliny the Elder discovered doctors using a crystal ball with the sun's rays beaming through it to cauterize wounds.
In the ninth century, telescopes were possibly made from Visby lenses, a Middle Eastern glass.
In 1520, Leonard Digges, an English mathematician, invented two telescopes � Reflecting and Refracting.
In 1608, A Dutch lensmaker, Hans Lippershey, applied for a patent on a design for a telescope.
In Camera Obscura 1609, Galileo improved on Lippershey's design and renamed it �perspicillum� - An Italian word for telescope.
In 1616, Niccolo Zucchi invented a reflecting telescope.
In 1663, James Gregory, a Scottish mathematician, produces a telescope with a parabolic primary mirror and an elliptical Telescope Mirror secondary mirror.
In 1668, Isaac Newton designed a telescope using a parabolic primary mirror and a flat diagonal secondary mirror.
In 1733, Chester Moore Hall created the achromatic lens.
In 1880, Ernst Abbe invented the first orthoscopic eyepiece.
In 1910, The Ritchey-Chretien telescope that is used in many of the large astronomical telescopes is invented by George Ritchey and Henri Chretien.
In 1930, The Schmidt camera is created by Bernhard Schmidt.
In 1937, Grote Reber developed a telescope for wavelengths ranging from radio to Xrays.
In 1944 Telescope Mount, The Maksutov telescope is designed by Dmitri Maksutov.
In 1962, The UK launched an orbiting solar telescope.
In 1990, the Hubble Telescope was launched into space.
In 2013, the James Daily Camera Webb Space Telescope will be launched and take the place of the Hubble.
And this all started with the polishing of a few stones.

pinhole camera Items For Viewing
Celestron 93588 Astro Night Vision Flashlight

Celestron 93588 Astro Night Vision Flashlight
The Night Vision Flashlight is Celestron's premium model for astronomy, using two red LEDs to preserve night vision better than red filters or other devices. Brightness is adjustable. It operates on a single 9-volt battery.

Celestron 93623 Narrowband Oxygen III 1.25 Filter

Celestron 93623 Narrowband Oxygen III 1.25 Filter
The Celestron 93623 Narrowband Oxygen III 1.25-inch filter is a remarkable advance for the serious visual observer of emission nebulae. One of the biggest advantages of narrowband filters is that by passing only the light emitted by nebulae, light from artificial sources like street lights is blocked. This allows you to take detailed exposures of nebulas from a suburban location that can rival shots from much darker sites. The Celestron 93623 is made of high quality, solid plane parallel glass.

To the Rescue

To the Rescue
Includes: Mad Scientist, Magnetic Telescope, Japateurs

Celestron Deluxe Tele-extender for Nexstar Telescopes

Celestron Deluxe Tele-extender for Nexstar Telescopes
The Deluxe Tele-Extender for Schmidt-Cassegrain telescopes is a hollow tube that allows you to attach a camera to your telescope, with an eyepiece installed. By using the Deluxe Tele-Extender in combination with an eyepiece, you can increase your instrument's effective focal length to well over 10,000mm! And this corresponds with a matching increase in image size. This technique is known as eyepiece projection photography. The following formula can be used to determine approximate effective focal length:EFL = Telescope focal length/Eyepiece focal length x DF (the distance from the center of the eyepiece to the film).The Deluxe Tele-Extender is used for high-power lunar, solar and planetary photography as well as for extreme terrestrial photography. It fits over the telescope's eyepiece (even large eyepieces such as those in Celestron's Ultima line), and connects to the visual back of the telescope. Optional counterweights will be necessary to properly balance the telescope when using the Tele-Extender.To use the Deluxe Tele-Extender, remove the diagonal from your telescope and insert an eyepiece directly into the visual back. Place the Tele-Extender over both the eyepiece and the visual back, then attach your 35mm SLR camera to the back of the Tele-Extender, using a T-Ring. The Tele-Extender's built-in safety device will help prevent your eyepiece from becoming accidentally dislodged.There are a few things to keep in mind when using this access

Nikon Monarch ATB - Binoculars 8 x 36 - fogproof, waterproof - roof

Nikon Monarch ATB - Binoculars 8 x 36 - fogproof, waterproof - roof
Nikon is a precision optical company with worldwide manufacturing, research and marketing capabilities. The Nikon name is equated with extraordinary photographic performance, innovation, precision and optical quality.PRODUCT FEATURES:100% Waterproof/Fogproof/Shockproof;Ultra-rugged, rubber-armored, roof-prism design;Extended eye relief and central focus for viewing convenience;Fully Multicoated lenses for bright, clear images;Precision aligned optics for extended viewing.

Reflecting Telescope Optics I: Basic Design Theory and its Historical Development (Astronomy and Astrophysics Library)

Reflecting Telescope Optics I: Basic Design Theory and its Historical Development (Astronomy and Astrophysics Library)

R.N. Wilson's two-volume treatise on reflecting telescope optics has become a classic in its own right. It is intended to give a complete treatment of the subject, addressing professionals in research and industry as well as students of astronomy and amateur astronomers. This first volume, Basic Design Theory and its Historical Development, is devoted to the theory of reflecting telescope optics and systematically recounts the historical progress. The author's approach is morphological, with strong emphasis on the historical development. The book is richly illustrated including spot-diagrams analysing special systems in modern form. In this second edition, the historical section has been revised. Also, various improvements to the text have been made, and new systems such as the 4-lens corrector of Delabre and the LADS corrector are now covered. The concluding Part II treats manufacture, testing, alignment, and modern techniques.

Nikon 2.5 - 10x42 mm BDC Reticle Scope Matte Black

Nikon 2.5 - 10x42 mm BDC Reticle Scope Matte Black
Nikon Monarch 2.5 - 10x42 mm BDC Reticle Scope. Precise bullet drop adjustments made easy. The Monarch 2.5-10x42 mm BDC Reticle Scope has a BDC (bullet drop compensating) reticle that lets you adjust for bullet drop, so your shot hits the target. It also has Nikon's new eyebox design with a huge ocular that provides a 4X magnification range and 4" constant eye relief without sacrificing field of view. More features: Fully multicoated optics provide 95% light transmission; Unique zoom control with rearward facing numbers; Rugged, 1-Pc. 1" tube with matte finish; Waterproof, fogproof and shockproof; Larger 42 mm objective; Quick focus eyepiece; Enhanced mount ring spacing; Handturn reticle that features Nikon's new interchangeable turret technology 1/4 MOA; Sunshade adaptable; F.O.V. @ 100 yds. 40.3' at 2.5X, 10.1' at 10X; 4.2 mm exit pupil; 4.0-3.8" eye relief; Parallax setting 100 yds.; Measures 12 1/2" l., weighs 16 ozs.; This deal hits the bullseye! Order Today! Nikon 2.5-10x42 mm BDC Reticle Scope, Matte Black

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