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Explore Scientific Telescopes

EXPLORE SCIENTIFIC AR127 Air-Spaced Doublet Refractor
D=127 / F=825mm Doublet Achromatic Refractor
57000 + 18% GST
Explore Scientific AR127 Air Space Doublet Telescope Explore Scientific AR127 Lens
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Explore Scientific Mirror Star Diagonal Explore Scientific Finderscope
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Explore Scientific Finderscope
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The classic air-spaced, crown-and-flint, doublet achromatic refractor is reborn with the aim to produce superior-class optical figure in a short (f/6.5) focal length design with Explore Scientific Air-Spaced Doublet AR Series. These optics are an extreme value, produce stunning images of deep sky objects, double stars, planets, and the moon that are a small fraction of the price of comparable aperture apochromat refractors. Finally one can own a diffraction-limited high quality refractor for a relatively modest investment.

Designed to handle the rigors of public star parties and educational outreach, the Explore Scientific AR Series has standard hardware which includes a precision two-speed focuser, a 99% dielectric-coated 2-inch diagonal, and an 8x50 finder scope. You can be confident that the quality and construction of these telescopes will allow heavy use for many years. Fully Multi-Coated Optics The optics in their collimatable lens cell are fully multi-coated to eliminate light scatter and maintain image contrast. We precision collimate every Explore Scientific telescope at our factory to give optimum performance. Although you may never need to adjust optical alignment, the AR Series allows for collimating the lens set should the telescope ever require it. Contrast is further enhanced with multiple baffles that mask and deflect unwanted stray light.

Deluxe Two-Speed Focuser The Explore Scientific Air-Spaced Doublet AR Series telescopes include a precision 2-inch, two-speed as standard equipment. The eyepiece holder uses a compression ring to prevent the eyepiece or camera barrel from scoring. Perfect focus is easily achieved with the Explore Scientific Two-Speed Focuser On those prestine nights of steady seeing, Saturn's Rings can forever affect the hearts and minds of almost anyone who lays eyes on them. It's nights like these that astronomers like to set up their refractors and push the magnification to the limits, not only to see the magnificence of the planet at greater scale but to really test the optical and mechanical quality of the telescope. Many telescopes are only supplied with a standard single-speed focuser, you will find that a tiny nudge will throw out focus and turn your night into one of frustration.

So we included as standard equipment, on all Explore Scientific AR Series, a ten-to-one, two-speed Crayford-style precision focuser with tension adjustment and lock to obtain and hold perfect focus. We think you'll agree that such precision is worth it. Universal Mounting Plate The Universal Mounting Plate of the AR Series Telescopes The Universal Adjustable Mounting Plate of the AR 127 fits on many popular equatorial and Altaz mounts, including mounts supplied by Explore Scientific, Vixen, and Meade LXD55/75. Instead of using a cast metal part, Explore Scientific's Universal Mounting Plate is made from extruded aluminum for added strength, it is afterall what secures your telescope to the mount. We also include adjustment screws and locking bolts to allow adjustments to position the angle of the telescope when it is placed on its mount, an important feature when using an equatorial mount.

Viewing Comfort and the Preservation of Precious Light The Two-Inch Dielectric Diagonal includes a 1.25" eyepiece holder adapter and dust covers to protect the mirror. Dielectric-Coated 2-inch Precision Polished Diagonal

The purpose of a diagonal is to securely hold your eyepiece and to give you a comfortable viewing angle. Provided as standard equipment, Explore Scientific's Two Inch Dielectric Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment. Ultra-high reflective coatings (99% reflective) composed of multiple thin layers of dielectric material delivers maximum light output. Both 2" and 1.25" eyepiece holders use compression rings instead of a simple set-screw to more securely hold your valued eyepiece (or imaging device) and to minimize scoring of eyepiece barrels. You can thread standard 48mm filters into the barrel. Provided as standard equipment, Explore Scientific's Two Inch Diagonal incorporates a light-weight, one-piece diagonal body that securely cradles the precision polished diagonal flat mirror, insuring precision alignment.

8x50 Finder Scope The Explore Scientific 8x50 Finder Scope provides a true field of view of 6°. Its coated optics provide a bright high-resolution image so that many faint stars and nebulosity can be detected for precise aiming. 8x50 Finder Scope with its Six Point Adjustable Finder Bracket. The front objective can be custom focused to provide a sharp image every time.
  • Optical Design: Air-Spaced Doublet Achromatic Refractor
  • Clear Aperture: 127mm
  • Focal Length: 825mm
  • Focal Ratio: f/6.5
  • Resolving Power: .9 arc seconds
  • Coatings: Fully Multi-Coated
  • Limiting Stellar Magnitude: 13
  • Focuser: Two-Speed Crayford-Style, w/ Adjustable Tension and Lock
  • Finder Scope: 8x50 Straight; Adjustable Objective Focus; Dual-Ring, Six-Point, Bracket w/Quick Release Shoe
  • Cradle/Saddle Plate: Dual Ring Style - Fits Explore Scientific Mounts; Celestron Mounts; Vixen Mounts; Meade LXD55/75 Mounts
  • Tube Diameter: 5.13" - 130.4mm
  • Tube Length: 34" - 863.6mm
  • Dew cap Diameter: 176mm
  • Tube Construction: Aluminum; Stainless Steel
  • Optical Tube Assembly Weight (with all standard accessories): 15 lbs - 6.8 kgs.
  • Shipping Weight: 35 lbs. -16kg
  • Shipping Carton Dimensions:16" x 13" x 35" - 40 cm x 33cm x 89cm
Scope of Delivery
  • Removable Dew Shield
  • Front and Rear Dust Covers
  • Cradle Rings with Handle and Univsersal Saddle Plate
  • Two-Speed Focuser 2.0" I.D.
  • 8x50 Finder Scope with Six Point Adjustable Bracket
  • 2.0" 99% Reflective Mirror Diagonal with 1.25 " Adapter
Field of application
  • Deep Sky Observation
  • Deep Sky Photography
  • Lunar observation
  • Lunar photography
  • Planetary observation
  • Focus Group Beginners
    Advanced Amateurs
    Product Family Refractor Telescope
    Optical design Achromatic Refractor
    Maximum recommended magnification 250
    Mirror/Lens diam. 127 mm
    Focal length 825 mm
    Angular resolution 1 arc seconds
    Type of coating Enhanced Multilayer Desposition (EMD)
    Finderscope 8 x 50 mm
    Width of image field width 24x36 mm receiver 2 degrees
    Height of image field width 24x36 mm receiver 1.7 degrees
    Mount Type Optics without Mount

    Material OTA Aluminium
    Transportability very good
    Focusing system 2" Crayford-Focuser with 10:1 Reducer
    Colour white
    Dust protection caps Dust protection caps for front lens and eyepiece holder

    Net weight OTA (incl. accessories) 6.8 kg
    Tube diameter 131 mm
    Eyepiece Barrel Diameter 50.8 mm
    Buy 1000 OAKS Solarite Safety Film
    Instructions for use in ENGLISH
    Download Introduction Manual in .PDF format
    Download Instruction Manual in .PDF format
    The following items are FREE with the telescope listed above. [ Subject To Availability ]
    Suggested Accessories with this Telescope
    • R-G Solar filter (USA) provide more pleasing and natural Yellow-Orange image of the Sun . . . . Rs 2280
      EYEPIECES (Super Premium Plossl for GSO)
    • 40mm Plossl Eyepiece 1.25" . . . . Rs. 2820
    • 32 mm Plossl Eyepiece 1.25" . . . . Rs 2640
    • 25 mm Plossl Eyepiece 1.25" . . . . Rs. 2550
    • 20 mm Plossl Eyepiece 1.25" . . . . Rs. 2460
    • 15 mm Plossl Eyepiece 1.25" . . . . Rs. 2280
    • 12 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
    • 6 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
    • 4 mm Plossl Eyepiece 1.25" . . . . Rs. 2100
    • GSO SuperView 15mm 1.25" Wide Angle Eyepiece . . . . Rs. 3000
    • GSO SuperView 20mm 1.15" Wide Angle Eyepiece . . . . Rs. 3000
    • GSO SuperView 30mm 2 " Wide Angle Eyepiece . . . . Rs. 4800
    • GSO SuperView 42mm 2" Wide Angle Eyepiece . . . . Rs. 4800
    • GSO SuperView 50mm 2" Wide Angle Eyepiece . . . . Rs. 4800
    • GSO 2x ED-Barlow-Lens (Multicoated) . . . . Rs.4800
    • GSO 2X Achromatic BARLOW LENS- fully multicoated 1.25" . . . . Rs. 1470
    • ED 3X Barlow Lens GSO 1.25" . . . . Rs. 2640
    • 3 Elememt 2.5x Barlow GSO 1.25"  . . . . Rs. 2370
    • 3 Elememt 5x Barlow GSO . . . . Rs. 2820
    • T-RING Nikon . . . . Rs. 930
    • T-RING Canon . . . . Rs 930
    • T Adapter 1.25" . . . . Rs. 750
    • Super ACHROMATIC (MultiCoated /High Colour corrected) 2X BARLOW 1.25" OD, 2 ELEMENT LENS with T-thread for direct camera attachment /with Brass compression ring / GSO. . . . Rs. 3,000
    • 2 inch T-2 Camera Adapter . . . . Rs 1650
    • Eyepiece Projection Camera Adapter . . . . Rs. 2100
    • Universal Cell Phone Adapter . . . . Rs. 1560
    • GSO 1.25" 32mm Camera Projection Lens (CPL) eyepiece ... Rs. 3,900
    • GSO 1.25" 40mm Camera Projection Lens (CPL) eyepiece ... Rs.4,080
    • GSO 2" 30mm Camera Projection Lens (CSV) eyepiece ... Rs.5,700
    • GSO 2" 42mm Camera Projection Lens (CSV) eyepiece ... Rs.5,700

    • Padded Carry Bag for Explore Scientific 102mm AR Doublet . . . . Rs. 2100 [ On Order ]
    • GSO....0.5X Focal Reducer 1.25" with 25mm extension tube ....Rs 1560
    • GSO.....0.5x Focal Reducer 2 inch ....Rs 2100
    • GSO Planet View Filters each . . . . Rs 660
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