Orion StarMax 90 Mak-Cass Telescope & Planetary Kit

Orion StarMax 90 Mak-Cass Telescope & Planetary Kit Reviews

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Orion StarMax 90 Mak-Cass Telescope & Planetary Kit Feature

• This thorough telescope and accessory kit is outfitted for planetary viewing perfection at a vlaue price
• Long 1250mm focal length Maksutov-Cassegrain telescope with 90mm aperture provides plenty of magnification ability in a compact, tabletop package
• Included Color Filter Set enhances landscape details and cloudy features on the bright visible planets
• Included 7.5mm Sirius Plossl 1.25" eyepiece provides a high magnification view, with pleasing 52 degrees apparent field-of-view
• Included Shorty 2x Barlow Lens adds versatility by doubling the magnification of each eyepiece in your collection, also includes Starry Night astronomy software

Whoever coined the phrase "big things come in small packages", would have definitely applied that expression to our new StarMax 90 TableTop Refractor. This ultra-compact Mak-Cass gives surprisingly big views for an instrument of its modest size, making it an elegant first telescope or a great grab-and-go second telescope! The long, 1250mm (f/13.8) focal length gives the StarMax 90 TableTop some serious magnifying power - the included 25mm and 10mm 1.25-inch Super 3-element eyepieces yield powers of 50x and 125x, respectively. It collects over 25% more light than its GoScope 80 cousin, and up to 225% more light than a 60mm refractor telescope. So you'll be able to enjoy planetary delights such as lunar landscapes, Saturn's rings and Jupiter's moons. As you scan the Milky Way, you'll also be able to pull in some open and globular star clusters, as well as a nebula or two. The tube assembly of the StarMax 90mm TableTop Refractor Telescope is attached to a stable swivel base, via a quick-release dovetail mount with adjustable altitude tension. The tube can easily be removed from the base and mounted on an optional photo tripod. The small swivel base itself can also be mounted on a camera tripod with a 3/8-inch screw.

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Jul 31, 2011 15:05:12

Free Shipping BINOCULAR 20X50 BLACK SPOTTING SCOPE TELESCOPE

Free Shipping BINOCULAR 20X50 BLACK SPOTTING SCOPE TELESCOPE Reviews

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Free Shipping BINOCULAR 20X50 BLACK SPOTTING SCOPE TELESCOPE Feature

• Model Number:20X50
• Brand Name:BUSHNELL
• Close focus distance: 45 feet
• color:black
• Warranty: Limited lifetime

Bushnell PowerView binoculars offer the best of both worlds, combining contemporary styling and design with traditional Bushnell quality and durability. This particular PowerView binocular offers a 20x magnification--among the most powerful in its class--and a 50mm objective diameter. The multicoated optics, meanwhile, guarantee superior light transmission and brightness, helping you see just about any target, whether you're searching for birds or trying to get a better view of the football field. And users will love the patented InstaFocus focusing system, which holds your subject in sharp focus with a touch of the fingertip. Additional features include a porro prism system, a nonslip rubber armor housing that absorbs shock while providing a firm grip, a neck strap, and 9mm of eye relief. Features: ?Magnification: 20x ?Objective lens diameter: 50mm ?Size class: Standard ?Focus system: InstaFocus ?Prism system: Porro ?Prism glass: BK-7 ?Lens coating: Multi ?Field of view @ 1,000 yards: 170 feet ?Close focus distance: 45 feet ?Exit pupil: 2.5mm ?Eye relief: 9mm ?Eyecups: Fold down ?Waterproof/fogproof: No ?Adapts to tripod: Yes ?Weight: 30 ounces ?Warranty: Limited lifetime

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Jul 30, 2011 09:16:39

Sky Watcher SW 90MAK MM S11320

Sky Watcher SW 90MAK MM S11320 Reviews

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Sky Watcher SW 90MAK MM S11320 Feature

• Sky-Watcher MAK-90 includes a multi-location terrestrial surveillance mode. The sophisticated built-in software allows land survey involving up to 6 different locations
• The software memorizes the positions the telescope is to point to and automatically goes to them on demand. You simply press the terrestrial "cruise" button and the number of the location desired, the telescope then moves into viewing position
• It is possible to command the telescope to cruise to each location automatically, stop for a moment and move on to the next location

Sky Watcher SW 90MAK-MM Telescope S11320 is a powerful 90mm mirror-lens telescope less than 10" long and weighing only 3 pounds that delivers the performance comparable to a traditional long tube refractor over 3 feet in length. The MultiMount MAK 90 can show great detail including Saturn with its distinctive rings, Jupiter with equatorial cloud bands, and striking detail of the Moon. The SW 90MAK-MM Telescope also functions as a versatile terrestrial spotting scope for viewing distant landmarks, scenery, animals, and people. Sky Watcher Telescope S11320 features astronomical mode which can automatically follow objects in space without the need for constant manual adjustments. Sky-Watcher 90MAK-MultiMount also can store land survey locations for automatic targeting.Specifications for Sky Watcher Telescope 90MAK-MM:Optical Design:Maksutov-CassergrainsLens Material:Grade-A Float GlassAperture (Diameter):90mmFocal Length:1250mmF-Ratio:F/13.9Secondary Mirror Diameter:NAHighest Practical Power:212xFaintest Stellar Magnitude:10.1Resolving Power:1.6 arc secFinderscope:8x20 ViewfinderFocuser Diameter:1.25"Diagonal:1.25", 90 degree Image Erect PrismEyepiece(s):1.25" Plossl 25mm, 12.5mm and 6.3mmMount Type:AltazimuthSlow-Motion Control:Computer micro-slewingMotor Drive:Micro-step stepperGo-To:Programmable 6 Locations Cruising ModeTube Weight:3 lbTube Dimension (dia. x length):11" longTripod Height:Desktop TripodFeatures of Sky-Watcher Telescopes 90MAK-MM S11320:Rigorous standards of optical qualityElectronic controller with built-in software for automated trackingGuide speed (1x) compensates for the Earth's rotation making stars stand-still. Slow speed (4x) allows ultra-fine position changes to center objects in the eyepiece or Viewfinder. Fast (8x) speed allows relatively quick gross incremental changes in location. With tracking mode turned off, the Guide speed accelerates to 32x; Slow speed to 64x; and Fast becomes a speed-demon at 800x.Latitude scale for adjustment of

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• Celestron 93625 Universal 1.25-inch Camera T-Adapter

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Jul 29, 2011 13:45:05

Seculine Twin1 R3max Infrared Wireless & Wired Remote Shutter Release Set for Sony & Minolta DSLR Cameras WITHOUT Built-in Infrared

Seculine Twin1 R3max Infrared Wireless & Wired Remote Shutter Release Set for Sony & Minolta DSLR Cameras WITHOUT Built-in Infrared Reviews

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Seculine Twin1 R3max Infrared Wireless & Wired Remote Shutter Release Set for Sony & Minolta DSLR Cameras WITHOUT Built-in Infrared Feature

• R3-Sets Max Product Features:
• All features of the R3-UT Max.
• (See R3-UT for more information)
• Up to 300ft or more of operational range.
• Multi Device Control - Interference protection.

Infrared Wireless & Wired Remote Shutter Release Twin-1 R-3 Set, for DSLR Cameras WITHOUT Built-in Infrared ... Longest operational range Up to 300ft or more!* (*maximum distance may vary depending on conditions) The Twin1 R3 Receiver fits directly into the pin socket of your camera leaving your hot shoe unoccupied. Twin1 R3-Sets give photographers extended operational range, allowing them to make all kinds of difficult shots possible. Each set comes with both a R3-UT transmitter and a highly sensitive, dual sided receiver sensor. The dual sided 180 degree rotating receiver senor gives coverage at all angles. Package contains Transmitter, Receiver, Release Cable, Key Chain, Transmitter and Receiver Battery, and Manual

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Jul 28, 2011 17:07:04

Celestron CGEM 800, 8" Schmidt-Cassegrain Telescope

Celestron CGEM 800, 8" Schmidt-Cassegrain Telescope Reviews

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Celestron CGEM 800, 8" Schmidt-Cassegrain Telescope Feature

• 8" Schmidt-Cassegrain telescope
• CGEM Computerized Equatorial Mount
• Schmidt-Cassegrain mechanism that moves the primary mirror to adjust focus is supported by two pre-l
• Celestron's premium StarBright XLT coatings
• 6x30 finderscope to help accurately find objects

CGEM - 800 - General Features 8" Schmidt-Cassegrain telescope CGEM Computerized Equatorial Mount Schmidt-Cassegrain mechanism that moves the primary mirror to adjust focus is supported by two pre-loaded ball bearings, minimizing the "mirror flop" typical of bushing focus mechanisms Celestron's premium StarBright XLT coatings 6x30 finderscope to help accurately find objects Ultra Sturdy 2" steel tripod with Accessory Tray Star diagonal provides more comfortable viewing position when observing objects that are high in the sky CGEM - 800 - Computerized Mount Features 40,000 object database with over 100 user-definable objects and expanded information on over 200 objects Proven NexStar computer control technology New "All-star" Polar alignment uses any bright star for a quick and accurate Polar alignment Software Features include: Mount Calibration, Database Filter Limits, Hibernate, five Alignment Procedures Flash upgradeable hand control software and motor control units for downloading product updates over the Internet Custom database lists of all the most famous deep-sky objects by name and catalog number: the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms Permanent programmable periodic error correction (PEC) - corrects for periodic tracking errors inherent to all worm drive

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• Celestron AC Adapter for use with all Celestron computerized telescopes.
• Celestron Accessory Kit
• Celestron Power Tank
• The Greatest Show on Earth

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Jul 27, 2011 13:00:04

Vixen VMC200L Catadioptric Telescope with SXD Sphinx Mount - 55037

Vixen VMC200L Catadioptric Telescope with SXD Sphinx Mount - 55037 Reviews

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Shop for Telescopes from Telescopes.com! The Vixen VMC200L is a telescope suitable for observation of all types of celestial objects. It benefits from a new lighter-weight optical tube with improved anti reflection coatings a metal carrying handle and a 7x50 finderscope. The VMC200L is a unique design that employs a meniscus corrector lens along with two high-precision spherical mirrors to help eliminate spherical aberration and yield a sharp image with no hint of false color. The VMC200L offers excellent performance for both visual and photographic use. The open tube design eliminates the dew problem that is common with conventional Schmidt-Cassegrain systems and its compact size makes it very easy to handle. The rack and pinion focuser accepts 2" eyepieces and accessories with an adapter. The SPHINX SXD equatorial mount and STARBOOK controller have been intelligently engineered for high-speed automatic location of celestial objects. It is now possible to explore the beauty of the night sky with greater ease and stability. The SPHINX comes standard with built in motors and the world's first star chart go-to controller STARBOOK with a large full color LCD display. The Sphinx s design is exceptional and the exterior styling is equally attractive. Vixen's Sphinx SXD Mount is designed with improved rigidity and precision movements. The SXD features solid steel motors thrust bearings and smooth RA and DEC motors. Main features of the STAR BOOK controller: Large color liquid crystal display. (4.7 inch 320x420 pixels STN 4096 colors) High Speed Internal CPU (32 bit RISC processor 75MHz 8MB SDRAM 4MB Flash ROM upgradeable) Zoom-In/Out buttons for the color star chart display also control the motor speed. As you zoom in closer to an object on the display the motor speed becomes finer and as you zoom out the motor speed increases to cover larger distances. Features and menu options are displayed on the large color screen and are navigated with simple buttons on the

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Jul 26, 2011 13:54:05

Astro Tech 110mm Ring Set for Vixen Style Dovetail, Black ATVR110

Astro Tech 110mm Ring Set for Vixen Style Dovetail, Black ATVR110 Reviews

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Astro Tech ATVR110

This Astro-Tech 110mm finderscope/photoguide ring set allows you to mount an 80mm to 100mm refractor optical tube on an optional Vixen-style dovetail plate that has been installed piggyback on a larger telescope. The set lets you use the small refractor as a high power/variable power finderscope for your larger telescope; as a photoguide scope for long exposure deep sky photography; or as a wide field astrograph that is guided through the main scope.

The Astro-Tech 110mm ring set consists of two 110mm i.d. rings mounted on Astro-Tech #ATVA Vixen-style dovetail adapters. A single hand-tighten knob clamps each Astro-Tech #ATVA adapter firmly in place on your Vixen-style dovetail, but allows the rings to be quickly repositioned along the dovetail so you can balance your smaller scope fore and aft as needed with no tools required.

There are three hand-tighten adjustment screws with non-marring Delrin tips in each ring. These allow you to collimate the small refractor with the main scope optics when it is used as a finderscope, or to aim the refractor off-axis to locate an appropriate guide star or photographic target when it is used as a photoguide or astrograph.

The rings have a nominal 110mm (4.33") internal diameter and will hold small refractor optical tubes with an o.d. of 80mm to 100mm. This size range allows the small refractor to be collimated with the main scope (if the refractor is being used as a finderscope), while still allowing for a reasonable amount of off-axis aiming to find a guide star (if the refractor is being used as a photoguide).

The larger the o.d. of your small refractor, however, the less off-axis aiming capability you will have for guiding. If your small refractor has an o.d. close to 100mm, you might be best served by going to the next larger guidescope ring size (125mm) to give you more off-axis aiming capability and t

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Jul 24, 2011 19:57:04

Celestron Power Tank 12 Volt Power Supply For Celestron Computerized Telescopes

Celestron Power Tank 12 Volt Power Supply For Celestron Computerized Telescopes Reviews

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Celestron Power Tank 12 Volt Power Supply For Celestron Computerized Telescopes Feature

• Built-in AM/FM Radio and Siren
• Removable red filtered flashlight with magnetic back
• Built-in multi-angle 800,000cp emergency Halogen spotlight
• Handy Jump-Start System: 250 cranking AMPS (5 sec.)
• Built-in circuit breaker for safety

Take your telescope anywhere with the Celestron® Power Tank 12 Volt portable rechargeable power supply for Celestron® computerized telescopes. The extra large Power Tank 17 is also useful as an emergency roadside accessory. It includes an emergency light, siren, AM/FM radio and booster terminals to start weak car batteries.

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• Celestron AC Adapter for use with all Celestron computerized telescopes.
• Celestron Accessory Kit
• Celestron Vibration Suppression Pads
• Celestron 93588 Astro Night Vision Flashlight
• Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube

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Jul 23, 2011 22:53:04

Televue Starbeam SCT Base w/ Flip Mirror

Televue Starbeam SCT Base w/ Flip Mirror Reviews

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Starbeam's unique flip mirror feature provides comfort and flexibility for viewing straight through and 90°. Viewed straight through, you see the natural sky with a 10 arc-minute (1/3 Moon dia.) "red-star" showing your scope's position. When your scope is pointed high, flip the mirror into position for more comfortable viewing. The size, color and adjustable brightness of the "red-star" makes it easy to see against any twilight to dark sky background.With its 39mm aperture, the projected image is easily seen any distance behind Starbeam, whether 2 inches or 2 feet! The finely made glass lens acts as a beamsplitter to combine the natural sky background with the superimposed red pointing "star." The first lens surface acts as a collimating mirror so the "red-star" stays stationary against the sky background regardless of your eye position. A compensating curve is designed into the second lens surface to provide the normal sky background view and is multi-coated to eliminate double images.Elegant in design and form, Starbeam is custom machined completely from aluminum and then black anodized, even down to the "push-pull" thumb screws. No tools are required to align Starbeam with your telescope. This new Starbeam model has a dovetail bar and mounting bracket that fits the rear cell of any 8" or larger SCT. The bar and bracket are also sold separately so any Starbeam owner can adapt the uniquely accurate, large aperture

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Jul 23, 2011 00:27:03

Orion SkyQuest XT10g Computerized GoTo Dobsonian Telescope

Orion SkyQuest XT10g Computerized GoTo Dobsonian Telescope Reviews

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Orion SkyQuest XT10g Computerized GoTo Dobsonian Telescope Feature

• Fully motorized GoTo Dobsonian reflector telescope locates, centers, and automatically tracks any of 42,000 celestial objects with pushbutton ease!
• Big 10-inch aperture reflector optics gathers plenty of light for pleasing views of galaxies, nebulas, and star clusters as well as bright close-up study of the planets and Moon
• Computerized GoTo motors, encoders, and gears come pre-installed on the Dobsonian base for easy assembly
• Requires 12V power supply (sold seperately) for motorized operation
• Includes 2-inch dual-speed (11:1) Crayford focuser, 28mm 2-inch DeepView eyepiece, 12.5mm 1.25-inch illuminated crosshair Plossl eyepiece, EZ Finder II reflex sight, eyepiece rack, collimation cap, and Starry Night software

Orion Dobsonians have always been known for superb optical and mechanical quality, wonderful ease of use, and remarkably affordable prices. One other thing they - and almost all other Dobs on the market - have had in common: you pushed the telescope to your observing target by hand. Until now. Orion is pleased to herald another giant leap in Dobsonian evolution with the introduction of the SkyQuest XTg series of fully motor driven GoTo Dobsonians. Now, pointing a Dob to even the most elusive of NGC curiosities is as easy as pushing a button or two on the XTg Dobsonians' illuminated hand controller. High-torque servo motors guided by two pairs of high-resolution encoders then slew the telescope right to your object of interest - any of over 42,000 objects in the GoTo controller's database. No more nudging the telescope tube continuously to keep the object from drifting out of the field of view, either. The XTg automatically tracks the object's motion, keeping it centered in the eyepiece while you savor the view. What's more, the closed-loop electronics of the XTg let you move the telescope manually - or endure the accidental bump - without losing orientation for accurate, automated GoTo pointing!

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• Orion AC-to-DC Power Adapter

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Jul 21, 2011 22:59:04

Vixen 3898 LVW 22mm Telescope Eyepiece

Vixen 3898 LVW 22mm Telescope Eyepiece Reviews

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Vixen 3898 LVW 22mm Telescope Eyepiece Feature

• 8 Elements in 5 Groups
• 20mm Eye-Relief
• 65deg Apparent Field of View

Designed to give the maximum field of view the human eye can view sharply, these eyepieces incorporate several elements made from Premium Rare-Earth Lanthanum glass to reduce optical aberrations.The LVW eyepiece is designed to give you an incredible wide rich field of view, while reducing any internal loss of contrast or sharpness. Stunning views of the Moon, Galaxies or extended Nebulae are sure to follow when using this eyepiece. Be careful when viewing with these eyepieces, you just may feel like you are falling into a galaxy. The 22mm LVW eyepiece is designed to give you Medium-Low magnification with an incredible wide field of view, while reducing any internal loss of contrast or sharpness.This will give you an incredible rich field of view, through all but the longest of focal length telescopes.Rare-Earth Lanthanum GlassMagnification; 2000mm=91X 1000mm=45X 500mm=23XDesign; 1.25Lbs , Boxed 5.5 x 2.5 x 2.5 inches

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Jul 20, 2011 22:41:05

Orion VersaGo II Altazimuth Telescope Mount

Orion VersaGo II Altazimuth Telescope Mount Reviews

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Orion VersaGo II Altazimuth Telescope Mount Feature

• Ultra-stable, easy-to-operate altazimuth "grab-and-go" tripod for small to medium sized telescopes
• The VersaGo II's 15 lb. load capacity makes it an excellent Alt-Az foundation for telescopes up to about 6" in aperture
• Strong but lightweight aluminum channel-leg tripod with removable accessory tray allows maximum portability and adjustable height
• Sturdy die-cast aluminum head features a dovetail saddle for quick telescope attachment and removal
• Slanted arm design allows instrument to be pointed to zenith, lateral arm offset puts load directly over center of tripod for maximum stability

Here's a nifty mount that will make navigating landscapes or starscapes with any modestly sized telescope a truly enjoyable experience. The VersaGo II Altazimuth mount combines a simple, sturdy design with lightweight "grab-and-go" portability - all at a highly affordable price. The VersaGo II differs from the heavier VersaGo II HD in having a lighter weight tripod (13 lbs.) that features aluminum channel-type legs that adjust in height. While both mounts can technically support the same 15 lb. load, the standard model, which weighs 5.5 lbs. less, is preferred when maximum portability is desired. The mount features a sturdy, die-cast metal single-arm altazimuth head that allows simple and intuitive up-down, left-right operation. Teflon thrust bearings on both axes ensure smooth, fluid gliding motion and oversize tensioning knobs and a rubber grip panning handle provide extremely fine positioning and control, even for tracking moving subjects. Because the laterally offset mounting arm places the telescope center of gravity over the center of the tripod and not off to the side, the VersaGo II offers maximum stability for spotting scopes, small astronomical refractors up to 120mm, Cassegrains and short reflectors up to 6" in aperture, or DSLR and video cameras. No counterweights are needed. The slanted arm design allows telescopes to point directly to the zenith. A dovetail saddle allows quick mounting and removal of your telescope.

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Jul 19, 2011 03:52:04

Barska Magnus 80ED Refractor Telescopew/20mm Eyepiece & Hard Case

Barska Magnus 80ED Refractor Telescopew/20mm Eyepiece & Hard Case Reviews

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Barska Magnus 80ED Refractor Telescopew/20mm Eyepiece & Hard Case Feature

• Extra Low Dispersion ( ED) glass delivers image with no color chromatic aberration of color fringing.
• Large 80mm objective lens with multi-coated optics maximizes light transmission for sharp edge-to-edge images
• Dual-speed Crayford-type focuser provides focusing with finite precision
• Ideal for planetary observations, wide field imaging, astrophotography and crisp high power observations
• Includes one 20mm Plossl eyepiece, diagonal packaged in a deluxe hard carrying case with pluck foam for protection and accessories storage

Our new Magnus Series provides stellar quality and performance in an extremely portable APO. Only ED (Extra Low Dispersion) glass optics with high transmission multi-coatings can produce this kind of exceptional edge-to-edge sharpness and color clarity. Magnus's ED optics produces images that are free of chromatic aberrations or color fringing. Manufactured with uncompromising attention to detail, both Magnus models feature a precision-crafted Crayford-type 2-speed fine focuser and dielectric diagonal for maximum light transmission to the included Plössl eyepiece. Ideal for nature viewing, birdwatching, terrestrial viewing as well as astrophotography, Magnus is the perfect addition to your scope collection or an ideal first scope. Includes deluxe hard carrying case with pluck foam inserts to hold extra eyepieces, filters and accessories . Backed by Limited Lifetime Warranty.

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Jul 16, 2011 06:11:05

Konus 2X Barlow Lens; .965"

Konus 2X Barlow Lens; .965" Reviews

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Konus 2X Barlow Lens; .965" Feature

• Double your focal length
• View at high power with your glasses
• Useful in digital astrophotography
• Great for scopes by Meade, Celestron, Orion, Tasco, and Bushnell
• Compatible with 0.965 inch diagonals and focusers

The Konus 2x Barlow Lens 1051 will double the focal length and in turn give any eyepiece used in a telescope double the power. The advantage in using a barlow lens is that it allows you to use eyepieces with longer eye relief, while still getting high power. Viewing becomes more comfortable with the 2x Barlow lens 1051 by Konus and can even be useful for anyone that wears glasses. Barlows can also be very useful in digital astrophotography of planets. Without a Barlow lens, most telescopes may not get the desired focal length in order to experience high planetary detail. Features of the Konus 2x Barlow Lens 105: Double focal length View at high power with glasses Useful in digital astrophotography Great for telescopes by Meade, Celestron, Orion, Tasco and Bushnell Compatible with 0.965 inch diagonals and focusers Package Contents: Konus 2x Barlow Lens 105

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Jul 15, 2011 06:46:04

Celestron 60LCM Computerized Telescope (Black)

Celestron 60LCM Computerized Telescope (Black) Reviews

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Celestron 60LCM Computerized Telescope (Black) Feature

• High quality 60 mm (2.4") refractor
• Quick-release computerized base, optical tube and accessory tray for quick no tool set up
• Database allows telescope to locate over 4,000 celestial objects
• Lightweight Computerized Mount
• Includes "The SkyX" Planetarium software

Automatically Locates The Wonders Of The Universe With Its Motorized System & On Board Computer! All glass, fully coated optics reveal the depths of our solar system and the wonders of the Universe. Fully adjustable tripod features a convenient accessory tray. Easy to use computerized hand control allows user to locate objects at the touch of a button.

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Jul 14, 2011 11:11:04

9mm Orion Expanse Telescope Eyepiece

9mm Orion Expanse Telescope Eyepiece Reviews

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9mm Orion Expanse Telescope Eyepiece Feature

• 9mm 1.25" telescope eyepiece offers a wide field of view and superior optical performance at a bargain price
• Nice 15mm eye relief lets eyeglass wearers view the entire field without removing their glasses
• Wide 66 degrees apparent field of view lets you see more of the sky
• Delivers sharp images with good color correction and contrast
• Aluminum 1.25" eyepiece barrel is internally blackened to eliminate light scattering, and is threaded to accept 1.25" Orion filters

With their 66-deg apparent field of view, our Expanse wide-field eyepieces will definitely turn up the Wow! factor in your deep-sky observing experiences! Imagine taking in objects like the Andromeda Galaxy, the Double Cluster, or the star clouds in Sagittarius in one sweep! With an Expanse in your focuser, you can! Expanse oculars have big eye lenses and great eye relief 15mm. Eyeglass wearers can view the entire field without removing their glasses. All eyepiece elements are fully coated, with the outer lens multi-coated for additional light transmission. Each 1.25" aluminum barrel is threaded for filters and internally blackened to eliminate internal scattering. And their fold-down rubber eyeguards enhance contrast by blocking stray light. With our Expanse eyepieces you get a super wide field of view and superior optical performance. And check out the price. You also get a bargain!

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• Orion Shorty 1.25" 2x Barlow Lens
• 1.25" Orion UltraBlock NarrowBand Filter
• 1.25" Orion Variable Polarizing Filter
• 1.25" Orion 13% Transmission Moon Filter
• Orion SkyQuest XT8 Classic Dobsonian Telescope

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Jul 12, 2011 14:15:04

Baader Planetarium Semi-APO Filter 2" FSAPO-2

Baader Planetarium Semi-APO Filter 2" FSAPO-2 Reviews

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Baader Planetarium Semi-APO Filter 2" FSAPO-2 Feature

• Baader Planetarium Semi APO Filter combines the Baader Fringe Killer coating formula with the Baade
• Zero image degradation
• Famous Baader Quality
• Works as a great Mars filter

Baader Planetarium Semi APO Filter 2"

The Baader Semi APO filter is a truly innovative product unique to Baader Planetarium. Founded by combining properties from two of their most popular filters the Baader Planetarium Semi APO Filter is a truly effective tool in fighting false color.

Baader's newest addition for Achromat owners. The Semi-APO works like it's name implies - delivering an amazingly neutral view, while cutting most of the annoying and contrast-robbing violet fringe that plagues all achromats. The Semi-APO filter combines a stronger Fringe Killer coating formula with the Moon&Skyglow Neodymium substrate. The result is similar performance to the Fringe Killer + Moon&Skyglow combination, but with a slightly stronger violet cut - and at an even greater value.

The Semi-APO filter benefits from all the host of world-class Baader filter attributes. The Semi-APO filter is truly the world's most advanced 'minus-violet' type filter in every regard. It's high efficiency and neutral coloration make it practically disappear in use - while making most of the violet fringe disappear! The effects on sharpness, contrast, and aesthetics are remarkable, even with small refractors. The RGB enhancement of the Neodymium substrate actually boosts color contrasts, particularly for Jupiter and Mars.

As a side benefit, the Semi-APO filter has also proven to be the best Mars filter we've used - with ALL Telescopes, including large Dobsonians, SCTs, and Apochromats. The unique properties that result from the combination of the Fringe Killer's blue wavelength attenuation (attenuation - not total elimination), plus the selective Neodymium RGB passbands, result in a significant contrast enhancement of Martian features. The image retains its natural coloration and brightness, and the optically polished surfaces maintain every bit of the image sharpness, unlike other manufacturer's filters.&

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Jul 11, 2011 17:23:04