Skywatcher AC 70/900 Capricorn EQ-1 Telescope

SKU:

SKYWATCHER-70900

Compact equatorial rich-field observing is the focus of Skywatcher AC 80/400 StarTravel 80 EQ-1 Telescope, combining an 80mm achromatic refractor, 400mm focal length, f/5 optics, EQ-1 mounting, finder, diagonal, tripod, eyepieces, and Barlow lens.

  • 80mm achromatic doublet refractor
  • 400mm focal length, f/5.0 optics
  • Manual EQ-1 equatorial mount
  • Includes finder, diagonal, tripod, eyepieces
  • Integrated T-2 camera thread
$121.00

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SKU: SKYWATCHER-70900 Category: Brand:
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Description

Featuring an elongated f/12.9 focal ratio for sharp planetary contrast, the Skywatcher AC 70/900 Capricorn EQ-1 Telescope manual equatorial refractor system delivers 1.66 arcseconds Dawes resolving power. Designed with a 70mm (2.76 in) aperture and a 900mm focal length, this instrument reaches magnitude 11.9 for dedicated lunar observation, planetary tracking, and double star viewing.

The Skywatcher AC 70/900 Capricorn EQ-1 Telescope features an air-spaced Fraunhofer achromatic doublet objective with multi-coated anti-reflection crown and flint optical glass elements. Its 885mm aluminum tube features internal stray light baffles, an unobstructed 0% central profile, and a 1.25-inch rack-and-pinion focuser. Mounted onto an EQ-1 manual German equatorial mount with counterbalance weights on an aluminum tripod, the 1.95 kg (4.30 lbs) OTA ensures smooth right-ascension tracking.

Key Features of Skywatcher AC 70/900 Capricorn EQ-1 Telescope

Built for high-contrast lunar and planetary tracking, this 70mm Sky-Watcher Capricorn refractor telescope pairs an elongated f/12.9 optical layout with an EQ-1 equatorial mount. Its manual right-ascension slow-motion tracking and 2x Barlow lens provide steady, high-magnification views of Jupiter and Saturn.

  • 70mm (2.76 in) clear aperture with 900mm focal length and long f/12.9 focal ratio
  • Air-spaced Fraunhofer achromatic doublet objective using crown and flint glass
  • Multi-coated anti-reflection optical layers with 0% central obstruction
  • 1.25-inch single-speed rack-and-pinion focuser for dependable focus adjustments
  • EQ-1 manual German equatorial mount with counterweight and slow-motion cables
  • Adjustable aluminum tripod with integrated central accessory storage tray
  • 5×24 optical finderscope, 1.25-inch 90-degree diagonal, and 2x Barlow lens included
  • Super 25mm and Super 10mm eyepieces included for low and high magnification

Long-Focus Fraunhofer Doublet & Pure Color Fidelity

The elongated 900mm focal length eliminates chromatic edge fringing on bright targets, delivering sharp views of lunar rilles and planetary cloud bands. Featuring zero central obstruction, this Sky-Watcher Capricorn refractor supports magnifications from 10.0x up to 140x.

EQ-1 Equatorial Mount & Manual Right-Ascension Tracking

Following celestial targets at high magnification requires polar alignment tracking. The Sky-Watcher Capricorn 70 EQ-1 features an equatorial mount head equipped with slow-motion control cables that allow stargazers to follow objects along right ascension smoothly. Paired with an aluminum tripod and counterweight, it provides a stable platform for planetary observation.

  • EQ-1 manual German equatorial mount with counterweight for smooth polar tracking
  • 1.25-inch 90-degree star diagonal paired with Super 25mm and 10mm eyepieces
  • 5×24 optical finderscope for accurate manual target acquisition in the night sky

Sky-Watcher Capricorn Series Warranty

The Skywatcher AC 70/900 Capricorn EQ-1 Telescope is backed by a 2-year limited warranty against material and manufacturing defects. The complete factory package contains the 70mm refractor OTA, EQ-1 mount head, aluminum tripod with tray, counterweight, 5×24 finderscope, 1.25-inch 90-degree diagonal, Super 25mm and 10mm eyepieces, and a 2x Barlow lens.

Sky-Watcher AC 70/900 Capricorn EQ-1 Telescope Specs

ParameterSpecification
BrandSky-Watcher
Full Model Code / SKU / MPN10706 (SK709EQ1)
Country of OriginChina
Series / Product LineCapricorn Series
Optical DesignAchromatic Fraunhofer Doublet Refractor (Air-Spaced)
Clear Aperture70 mm (2.76 in)
Focal Length900 mm
Focal Ratiof/12.9
Optical Coatings / Substrate TreatmentMulti-Coated Anti-Reflection
Central Obstruction0% - Unobstructed Refractor
Glass Substrate / ED Element SpecCrown / Flint Optical Glass
Corrected Image Circle / Sensor Coverage28 mm (Visual Field)
Standard Back Focus / Flange Focal DistanceNot Disclosed by Manufacturer
Diffraction-Limited Theoretical Resolving Power1.66 arcseconds
Limiting Visual Stellar Magnitude11.9 mag
Highest Useful Magnification140x
Lowest Practical Magnification10.0x
Focuser Architecture & Reduction Ratio1.25-inch Rack-and-Pinion Focuser (Single Speed)
Optical Tube Assembly (OTA) Dry Weight1.95 kg (4.30 lbs)
OTA Physical Dimensions885 mm length, 70 mm outer diameter
Included Mechanical Mounting InterfaceVixen-style Mounting Bar with Tube Rings
Mount & Drive Type IncludedEQ-1 Manual German Equatorial Mount with Counterweight and Aluminum Tripod
Verified Factory In-Box InclusionsOTA, EQ-1 Mount Head, Aluminum Tripod with Tray, Counterweight, 5x24 Finderscope, 1.25-inch 90-degree Diagonal, Super 25mm and 10mm Eyepieces, 2x Barlow Lens
Factory Warranty Coverage2-Year Limited Warranty
Primary Optical Application & Astronomical Target ProfileHigh-Contrast Lunar and Planetary Observation with Manual Right-Ascension Tracking

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