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A ALSTAR

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We found that most of the A ALSTAR products are manufactured by Alstar. The manufacturer provides A ALSTAR with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase A ALSTAR products from the seller Alstar Optics. The brand holds an average rating of 4.9, testifying to its excellent reputation.

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Last Updated: Jan 11, 2025

Alstar 8 Piece Telescope Accessory Kit - Fully-Coated Eyepieces, 2X Barlow Lens, Colored Filters, Moon Filter and Sturdy Carry Case - A Useful Set of Accessories for The Newcomer to Astronomy

For Beginners: This Telescope Accessory Kit for beginners includes almost all of the 1.25 inch accessories needed for a standard entry-level telescope; It gives you everything you need to enjoy different types of observing
Two Fully-Coated Eyepieces: The 15 mm and 6 mm eyepieces make a good addition to your existing eyepieces; Perfect for broadfield lunar observations; Medium sized star clusters; And a wide range of cloudy nebulas and deep sky targets
2x Barlow Lens: The magnification of the eyepiece can be increased with the use of a Barron lens; Simply place it between the telescope and eyepiece to see objects twice as large as before; The supplied T-thread allows a T2 ring camera to be mounted
Three 1.25 Inch Filters: Two color filters to increase the contrast of Mars' polar caps or Jupiter's belts; And a lunar filter to reduce the brightness of the Moon to enhance contrast and reveal more details; The colored filters are anti-reflection coated
Sturdy Carry Case: The inner pocket cleaning cloth can be used when the accessory is wet or dirt; Foam-lined interior keeps everything safe; suitable for outdoor carry; convenient for your outdoor astronomical observation and photography
Package Include: Two fully-coated eyepieces; a 2x barlow lens; two color filters; a moon filter; a sturdy carry case; a cleaning cloth

Alstar Alignment 1.25" Next Generation Laser Collimator 2" Adaptor for Newtonian Telescopes

The laser comes fully adjusted; It can be further adjusted if required; It has three openings for adjustment: arranged at 120 degree which are initially sealed; The battery can be exchanged by unscrewing the small screw cap at the rear of the laser
This adjustment tool can be used in all 1.25 inch focusers; We provide you with precise instructions in German and English with a step by step explanation of how to adjust a telescope using this laser unit; Even if you are a newcomer to amateur astronomy
The laser unit has a front opening from which the laser beam can be emitted; It has a side window allowing a disk oriented at 45 degree with a central hole to be viewed; This can be later be used to see whether the laser is reflected back on itself
Built with metal material; CR2032 Lithium Cell battery which is Not include; Accurate collimation in a few minutes provide a more clearer image; The telescope can be collimated by just one person
Designed for Reflector telescope; fit for standard 1.25 and 2 inch diameter; Red laser collimation beam with 7 brightness levels; wavelength 635 to 655 nm; Output power less than 5 mw; This sturdy laser unit allows you to swiftly collimate your telescope

Alstar Binocular Tripod Adapter for Roof and Porro Binoculars

High quality metal material: Solid and steady for one time purchase; long term use; Fits most binoculars equipped with adapter screws; Helps you view your object with more stability on a tripod
Outfitted with a socket for tripod adaptors; can be connected to tripods with a 6.35 mm 1/4 inch thread fast and easily
Simple and resisitant; the mount tripod adapter provides a rigid and secure base near the center of the Roof binoculars and Eliminate image shake in high power Roof binoculars
Contrary to observations with a spotting scope your observations with binoculars will be much more relaxing; because you can use both of your eyes and do not have to keep one shut
Experience the fascination of a vibration free observation with both of your eyes; For as long as you want to; without your arms getting tired

Alstar Alignment 1.25" Next Generation Laser Collimator for Newtonian Telescopes

The laser comes fully adjusted; It can be further adjusted if required; It has three openings for adjustment: arranged at 120 degree which are initially sealed; The battery can be exchanged by unscrewing the small screw cap at the rear of the laser
This adjustment tool can be used in all 1.25 inch focusers; We provide you with precise instructions in German and English with a step by step explanation of how to adjust a telescope using this laser unit; Even if you are a newcomer to amateur astronomy
The laser unit has a front opening from which the laser beam can be emitted; It has a side window allowing a disk oriented at 45 degree with a central hole to be viewed; This can be later be used to see whether the laser is reflected back on itself
Built with metal material; CR2032 Lithium Cell battery which is Not include; Accurate collimation in a few minutes provide a more clearer image; The telescope can be collimated by just one person
Designed for Reflector telescope; Red laser collimation beam with 7 brightness levels; wavelength 635 to 655 nm; Output power less than 5 mw; This sturdy laser unit allows you to swiftly and precisely collimate your telescope

Alstar AccuFocus Electronic Telescope Focuser

The electronic telescope focuser kit contains a variety of parts including two different types of focuser brackets; hardware and coil cables
There are three installation methods for this electronic telescope focuser that is simple to install and makes achieving sharp focus easy
The control box requires a standard 9V battery to operate; The 9V battery goes into the battery compartment in the rear of the control box; which can choose speeds from coarse to very fine with the adjustable speed control knob on the box
Choose speeds from coarse to very fine with the adjustable speed control knob for precise focus adjustments
Accufocus electronic focuser cannot be used on Maka; DOB type telescopes and telescopes with APO two speed focusing; but only on telescopes with single speed focusing such as some brands of refractors and reflectors in the 60 to 127 mm range

Alstar Universal Quick Release Finder Shoe Base for Schmidt Cassegrains and Other Telescope 130-400mm Diameter - for MQR III&IV/Witty One and V-Bracket - Black

Aluminium Alloy Material: Made of high strength Aluminum with Anodizing Aluminium Process; Precision machined solid aluminum finder shoe base in matte black; for almost all viewfinder holders; for the Witty 1 Tangent attachment
Easy To Install: Two large knurled thumbscrews makes it easy to install: Bases feature two large thumbscrew locks to secure your finder scope or reflex sight in place; even while wearing gloves; Just put it on the optical tube and tighten the screws
Multi Function: There are two elongated holes on this base and a single countersunk hole for screws up to M5 in the middle; Two screws are on the on side of base; The spacing between the two screws is 24 to 41 mm
Well Engineered In Shape: The base forms two linear constraints on each tube radius of 130 to 400 mm in diameter; which gives maximum stability; The base also carries small guidance/CCD guider without any problem
Practical Funcationality: Synta style dovetail base; Fit most bracket designs from Cele stron; Or ion; Sky watcher; Vi xen; etc; Compliable with finder scope; Laser Pointer bracket on telescopes

Alstar Triple Finder Scope Mount Bracket for Astronomical Telescope Finder Scopes - Three Different Types of Telescope Finders Can Be Mounted with Just One Bracket

Accommodates three finder scopes simultaneously; Each finder is securely clamped with two screws; Using different types of finder at the same time; you can find your favourite objects easier and faster; In the end
Use any combination of three aiming devices you wish including finder scope; red dot reflex sights; green laser pointer brackets; mini guide scopes and more; Attach three finder scopes or other aiming devices to your telescope quickly and easily
Black anodized aluminium: The Tri Finder will give you many years of enjoyment made of anodized aluminium; it is not only extremely light but is also anodized in black; This gives the holder a refined and smooth appearance
A holder for a mini guide scope: They look like finder scopes; but there are actually guide scopes; Astrophotographers like to use them with an auto guider; But the best thing is that they are easy to install and fit into the Tri Finder
Just a finder scope shoe and not a single extra hole necessary: A finder scope shoe is all you need; mounting is easy; just slide the Tri Finder into the existing finder scope shoe; You now have 3 Vixen/Synta slots at your disposal

Alstar 2" ED 2X Dual Power Telescope Barlow Lens for Telescopes

Two element; fully multicoated lenses with excellent color correction; sharpness; and image brightness
The barlow lens that is versatile; you can unscrew the lens and screw it into your 2 inch eyepiece
2 inch 2x achromatic Barlow increases the magnification of each eyepiece and effectively doubles or triples the number of eyepieces at your disposal
Full unit increases magnification of eyepiece by 2x; Threaded for use with 2 inch filters
Barlow element separates from extension tube and threads directly into a 2 inch eyepiece for 2x increase in magnification

Alstar 2" 2.5X Barlow Lens - Allows The Use of Both 2" and 1.25" Eyepieces

The barlow increases the magnification of any 2 inch or 1.25 inch eyepiece by two and a half times
Rubber grip for easy handling in cold weather or with gloves
A 2 inch to 1.25 inch adapter is included; Allows the use of both 2 inch and 1.25 inch eyepieces
Hard anodized aluminum barrel is threaded to accept 2 inch filters
Brass compression rings securely hold eyepieces without marring the finish of the eyepiece barrel

Alstar Premium Dovetail Clamp for Telescopes and Cameras - You Can Attach Your Telescope to Mount - Especially Suited for Heavy Telescopes

Extremly flexible through 9 countersunk bores: three M6 bores at 38 mm distance square on both sides; one in the middle with two drilled but not threaded to accommodate screws up to 6 mm in diameter center to center screw hole spacing is from 35 to 63 mm
Dimensions: 87 mm x 87 mm approx; 116 mm with screw; 9 bores allow connecting to almost all surfaces
Areal clamping with two clamping screws; protects the accessories and provides a very stable connection
Clamps all GP level bars safely and reliable; Especially high load capacity up to approx 20 kg
With the Alstar dovetail clamp; you can attach your telescope to mount especially suited for heavy telescopes

Alstar 2" Telescope Moon Filter ND96-0.9 ND96-0.6 ND96-0.3 Kit for Telescope Eyepiece Accessory Reduces Moon Glare and Enhances Lunar Crater Details - 3 Filter Set

Neutral density filters are excellent filters to reduce the overall brightness of an image to cut down glare while viewing bright astronomical objects through a telescope
These three ND moon filters are useful for splitting binary systems; comfortably observing the moon; or stacking with other planetary filters
ND filters retain true color balance of the objects being observed since all wavelengths are transmitted uniformly over the entire spectrum
Especially useful for large aperture telescopes through which the light of the Moon can be extremely overwhelming
This ND96 neutral density filter allows 13,25,50 percent of the visible light to pass through; Metal filter cell threads directly into the 2 inch barrel of your telescope eyepiece

Alstar 3 Pcs Dust Caps for 2" Telescope Eyepiece, Barlow Lens, Diagonal and Other Telescope Accessories - M48 X 0.75 Telescope Accessories Protection

Protect Multiple Accessories: This set of 3 Pcs of dust caps; which can effectively protect your products from dust; scratches and other impacts
For 2 Inch Telescope Accessories: Fit 2 inch telescope eyepiece; barlow lens; diagonal; T adapter and other telescope accessories
Made of High Quality Plastic: Made of high quality plastic with strong toughness; resistant and long lasting; it will not cause damage to your own products
Easy to Install: The dust caps can be easily pushed in and pulled out; but it will not fall off on its own
Lightweight: Convenient to carry whether going out or traveling long distances

Alstar 1.25" 4-Elements 5X Barlow Lens Fully Multi-Coated Optics

The 1.25 barrel is internally threaded for use with Alstar 1.25 inch eyepiece and imaging filters; The inside of the barrel of the 5x High Power Barlow is also glare threaded to help prevent internal reflections
The Alstar High Power 5x 4 Element Barlow Lens quintuples the power of any 1.25 inch telescope eyepiece
Featuring a 4 element lens design; The Alstar High Power 5x Barlow will render exquisite images without introducing additional chromatic abberation while providing a monstrous 5x power boost
The Barlow lens elements are fully multicoated with antireflection coatings to ensure maximum light throughput for bright; crisp views
The lenses are also edge blackened to further maximize contrast and sharpness

Alstar Universal Dovetail Base for Finder Scope - Ideal for Installation of Finder Scope, Green Laser Pointer Bracket

Made of high strength Aluminum with Anodizing Aluminium Process; The base is made of die cast metal and features two large thumbscrew locks; Includes two M5 screws
Compliable with finder scope; Laser Pointer bracket or reflex sight bracket on telescopes; great for adding a second or third aiming device to your telescope
Fits factory drilled holes on most Celestron; Meade; and Orion Schmidt Cassegrain telescopes; attaches directly to Schmidt Cassegrain Telescope SCT optical tube with included mounting hardware
Drilled but not threaded to accommodate screws up to 5 mm in diameter; Center to center screw hole spacing on your telescope must be from 10.2 to 30.2 mm in order for this dovetail base to be compatible
Ideal for custom installation of any finder scope and Green Laser Pointer bracket on any telescope; Dovetail base fits finder scope or reflex sight bracket so you can securely attach an aiming device to any telescope; Synta style dovetail base

Alstar Deluxe Telescope LRGB 2 Inch Filter Set - Colour Filters for Use with Monochrome CCD Cameras - Give Stunning Astrophotographic Results

The Alstar LRGB Filter Set comprises four filters: 2 inch luminance Filter; 2 inch Red Filter; 2 inch Green Filter; and 2 inch Blue Filter; this LRGB filter set enables you to combine high-resolution color images with a monochrome CCD camera
The luminance filter transmits the entire visible light spectrum while blocking near some invisible light; these three RGB filters signify the three primary colors of red, green and blue; which are able to create a color photo
Features dichroic glass filters designed for maximum transmission; The color filters have a blocking coating; and all filters are parfocal to eliminate the need for refocusing between exposure sets
Precision CNC-machined metal filter cell featuring a sand-blasted; black anodized finish; anti-reflection treatment; and laser engraving; it can be smoothly connected to other accessories through aluminum oxide threads
Tips: This LRGB Filter Set is best used in conjunction with a filter wheel; which allows you to easily change to a new filter after each set of exposures by simply rotating the filter wheel; compatible with 2 inches telescope accessories

Alstar 70mm Compact Deluxe Finder & Guidescope Kit with 1.25" Double Helical Focuser

Mini guide tube to quickly find objects and guiding stars; designed both for visual; as well as for photographic use; 400 mm focal length; With bright; wide field optics puts numerous potential guide stars in view so you will never have to search for one
Have a builtin worm focuser with Brass Compression Ring and 2 thumbscrews; 88 mm focusing range: 10 mm focusing range with microfocusing Helical focuser; the rest is by a fixable; scaled drawtube is made possible by an extremely precise focus adjustment
The sturdy metal housing made ​​of black anodized aluminum; Looking out is solid and very robust; A milled ; knurled ring allows precise fine focus adjustments; It comes with matching pipe clamps; A Synta style mounting plate to make installation easily
The sturdy metal housing made ​​of black anodized aluminum; Looking out not only solid; but is also very robust; A milled and knurled ring allows easy and precise fine focus adjustments
Adjustable aim dovany weight to an astrophotography setup and can conveniently be stashed in an accessory case between uses; Dovetail guide scope bracket installs on virtually any astrophotography telescope quickly and easily

Alstar 5Pcs 1.25" Telescope Filters Kit with Orange, Green, Yellow, Blue and Moon/Skyglow Filter for Improved Clarity and Resolution of Planetary Observations

Different Color Filters: This telescope filter set contains five different colors of filter lenses to better meet the need to take photos that capture more details in every scene; enhance contrast and create a cinematic effect
Filter Function: Orange filters increase contrast; green filters allow for better skin shading; yellow filters create greater contrast between skies or trees and clouds; blue brings greater contrast between light and dark to black and white photos
Metal Material: The filter holder is made of metal and is extremely thin to minimize shadows and diffraction; and the internal threads on both sides of the filter also allow for the attachment of 1.25 inch eyepieces or other accessories
Schott Optical Glass: High grade Schott optical glass is vat dyed for even color coating; then anti reflection coated for maximum light throughput
Discount Package: The 1.25 inch Filter Kit offers an excellent price/performance ratio; which allows you to get a favorable price while meeting your different needs

Alstar 2" to 1.25" Telescope Eyepiece Adapter

Allows you to use 1.25 inch eyepieces in any 2 inch telescopes focuser; star diagonal; or holder
An affordable way to increase the number of eyepieces to use with your 2 inch focuser equipped telescope
Great for performing lunar and planetary viewing in larger telescopes
This is a very good quality anodized aluminum adapter that has filter threads at the bottom for 2 inch and 1.25 inch telescope filters
Ideal for using high power; low focal length 1.25 inch eyepieces in a big 2 inch telescope focuser

Alstar Anti-Vibration Suppression Pads Telescope Mounts

Practical And Resistant: The product is of small shape and convenient to carry around; Long term use; Sun proof; water repellent and washable; anti slip; moisture proof
Prevent Vibrations: These pads are designed to reduce vibration time by almost 100 percent; In future; save yourself the annoyance of shaky images and get yourself some real help for frustration free observing and astrophotography
Multi Function: Ideally suitable for astronomy; nature observations; photography; Reduces the oscillation time for the image to settle down and stop shaking and muffles the strength of oscillations; During the shooting; Withstand heavier telescopes
Practical Design: These pads are sold in sets of 3 one for each tripod leg; The center of the product is designed with different diameters of stripe to fit different sizes of tripod; The orange rubber strip in the middle has a buffer function
100 Percent Satisfaction: If you have any question with our product; please contact us freely

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Most of the A ALSTAR products are produced by Alstar. The manufacturer provides A ALSTAR with a steady supply of products, and they have a good cooperative relationship with each other.

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