Tasco Spacestation 114x500mm Reflector ST with Variable LED Red Dot Finderscope Telescope

Tasco Spacestation 114x500mm Reflector ST with Variable LED Red Dot Finderscope Telescope Reviews

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Tasco Spacestation 114x500mm Reflector ST with Variable LED Red Dot Finderscope Telescope Feature

• Single Fork Arm Altazimuth Mount
• Red Dot Starpointer Finderscope
• Adjustable Aluminum tripod

Put on your pressure suit and commence docking procedures, because we have a Spacestation powerful enough to take you to the moon and way, way beyond. Se the star like you've never seen before with a view from an all-new Tasco Spacestation telescope featuring a cosmically inspired new design. Its variable LED electronic REd Dot Finderscope takes you to to visit your favorite constellation in a flash by quickly finding any object in the sky. with an LED electonic red dot finerscope, 500mm focal length and 114mm objective mirror, the Spacestation 114ST is ideal for any astronomer. Accessories include,Tasco SkyWatch CD-Rom, 3x Barlow lens, Moon Map, Moon Filter.

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May 14, 2011 21:41:04

Celestron EdgeHD 1100 Schmidt-Cassegrain Optical Tube

Celestron EdgeHD 1100 Schmidt-Cassegrain Optical Tube Reviews

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Celestron EdgeHD 1100 Schmidt-Cassegrain Optical Tube Feature

• Celestron 11" aperture aplanatic Schmidt-Cassegrain telescope produces astrograph-quality flat focal plane
• EdgeHD coma-free Cassegrain optics and a built-in field flattener ensures sharp focus all the way to the edge of the field
• Flexible tension clutches hold the mirror in place and reduce image shift when rotating the tube around a mount
• Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror
• All EdgeHD optical tubes are Fastar compatible for imaging down to f/2 with optional accessories

Celestron's innovative new EdgeHD telescopes are aplanatic Schmidt Cassegrain models designed to produce aberration-free images across a wide visual and photographic field of view. Celestron EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope. This guarantees you visibly sharp stars across some of the largest CCD chips available today. Superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron's High Definition optics you will be able to capture the faintest of galaxies all the way to the corner of your full frame camera chip. Coupled with Celestron's XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum. The EdgeHD tube has been redesigned with top-notch features to make sure you get the most from your optics each and every night. Mirror locks hold the mirror in place and reduce image shift when rotating the tube around the mount. Flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror, keeping the image centered in the eyepiece (or chip). Cooling tube vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 60 micron mesh filter guaranteed to let warm air out without letting dust in.

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May 14, 2011 02:12:04

Vixen 37113 NLV 25mm Telescope Eyepiece

Vixen 37113 NLV 25mm Telescope Eyepiece Reviews

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Vixen 37113 NLV 25mm Telescope Eyepiece Feature

• Apparent FOV: 50 Deg.
• Eye Relief: 20mm
• 5 Elements/3 Groups
• Weight: 128g/4.51 oz

The Vixen NLV Series Eyepieces feature comfortable long 20mm eye-relief, simple twist-up eyecups for adjusting the best eye-point and high grade Lanthanum glass for clear and high contrast viewing. All optics are multi coated.Size: 31.7mm

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May 12, 2011 04:43:04

Orion Long 2" Adapter for Crayford-Type Telescope Focuser

Orion Long 2" Adapter for Crayford-Type Telescope Focuser Reviews

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Orion Long 2" Adapter for Crayford-Type Telescope Focuser Feature

• Adapter designed for use with the Orion 2" single speed Crayford focuser to allow focus to be achieved with some reflector telescope optical tubes
• Provides extra height needed when single-speed Crayford focuser is used with Orion 203mm f/4.9 and 254mm f/4.7 reflector optical tubes
• Adapter is not required for use of single-speed Crayford focuser on Orion Dobsonian telescopes
• Allows visual use of eyepieces with specialty focuser and some mounted reflector telescope tubes
• Made of anodized aluminum

This extension adapter is designed for use with the Orion 2" Crayford-type focuser (#13039). The adapter provides the extra height needed when the focuser is used with Orion 203mm f/4.9 and 254mm f/4.7 reflectors. The adapter is not required on Orion Dobsonians.

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May 11, 2011 08:56:04

Vixen 3810 Dovetail-Plate Mounting Block

Vixen 3810 Dovetail-Plate Mounting Block Reviews

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The Vixen 3810 is a Dovetail-Plate Mounting Block. It is used for installing an optical tube with the standard dovetail attachment. It is usable with ATLUX Accessory Plate, ATLUX Base Plate or SX Accessory Plate DX.

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May 10, 2011 08:15:05

Vixen 39207 NPL 25mm Telescope Eyepiece

Vixen 39207 NPL 25mm Telescope Eyepiece Reviews

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Vixen 39207 NPL 25mm Telescope Eyepiece Feature

• Twist-up eye cup
• Apparent FOV: 50 Deg.
• Eye Relief: 19.5mm
• Weight: 1300g/4.59 oz.

The 2-group 4- element PLOSSL series eyepieces offer flat and clear images with good color correction. Size: 31.7mm

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May 09, 2011 12:58:04

Astro Tech 6" f/4 imaging Newtonian Optical Tube

Astro Tech 6" f/4 imaging Newtonian Optical Tube Reviews

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Astro Tech 6" f/4 imaging Newtonian Optical Tube Feature

• very fast f/4 focal ratio 6" Newtonian reflector optics
• contrast-enhancing extended tube length
• 2" dual-speed linear bearing Crayford focuser with 2" and 1.25" compression ring accessory adapters
• 8 x 50mm finderscope in a quick-release bracket
• dual split hinged mounting rings

This Astro-Tech Imaging Newtonian optical tube has:

This 6" Astro-Tech AT6IN optical tube is a very fast focal ratio f/4 reflector that has been optimized for very wide field deep space imaging. It can be used with 35mm cameras, DSLRs, web-cams, DSI-type cameras, and large format CCD cameras alike.

The light weight standard equipment mounting rings of the Astro-Tech Imaging Newtonian allow you to use it on a wide variety of dovetail plates and German equatorial mounts from the most basic to the most elaborate high payload go-to system.

In addition to deep space imaging, the Astro-Tech AT6IN is also usable for solar system imaging as well as deep space and solar system visual observing. Solar system visual contrast will be somewhat reduced compared to a longer focal ratio reflector because of the AT6IN's larger secondary mirror that has been optimized for full-field photographic illumination. However, the visual performance will still be much more than acceptable, and the 610mm focal length of this Astro-Tech makes it quite possible to achieve the high powers needed for detailed lunar and planetary observing. Simply add optional 1.25" or 2" eyepieces, and perhaps an optional Barlow lens, and this Astro-Tech Imaging Newtonian will provide you with crisp and sharply detailed close-up views of the Moon and planets.

This Astro-Tech Telescope's Optical System . . .

Newtonian reflector optics: 6" aperture, 610mm focal length, f/4 focal ratio. Parabolic primary mirror. Both primary and diagonal mirrors are ground and polished under computer control for guaranteed diffraction limited performance, coated with 91% reflectivity aluminum, and overcoated with a protective layer of silicon dioxide (quartz) for long life.

The mirrors are made of B270 "water white" optical crown glass that is free of internal stress and striae. B270 glass is equivalent to

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May 08, 2011 05:21:04