National Geographic AC 70/900 AZ-EQ MPM Telescope

SKU:

NATIONALGEOGRAPHIC-70900

For dual-mode manual tracking, the National Geographic AC 70/900 AZ-EQ MPM Telescope combines a 70mm refractor with 900mm focal length and convertible alt-azimuth or equatorial mounting.

  • 70mm aperture provides 1.65-arcsecond resolution
  • 900mm focal length uses f/12.9 optics
  • AZ-EQ mount supports two configurations
  • 45x, 72x, and 225x eyepieces included
  • 6×25 finder and Barlow included
  • 1.5x erecting lens and diagonal included
$127.00

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Description

Dual-mode manual observation defines the National Geographic AC 70/900 AZ-EQ MPM Telescope, an achromatic refractor featuring a 70 mm aperture, 900 mm focal length, and listed f/12.9 optical ratio. Its multi-purpose mount can be configured for alt-azimuth daytime viewing or equatorial celestial observation, while the 6×25 finder, three eyepieces, 1.5x erecting lens, 3x Barlow lens, diagonal, aluminum tripod, accessory tray, and adjustable support provide a flexible complete telescope system.

The long 900 mm focal length supports lunar and planetary observation, while the MPM mount allows the viewing mode to be selected according to the target and observing context. The manual configuration requires careful leveling, tripod setup, and equatorial alignment when tracking celestial objects, while the optical tube, finder, eyepieces, diagonal, and mount should be protected during storage and transport.

Key Features of National Geographic AC 70/900 AZ-EQ MPM Telescope

This dual-mode refractor combines a 70 mm aperture with a 900 mm focal length, f/12.9 optical ratio, convertible alt-azimuth and equatorial mount, 6×25 finder, three eyepieces, erecting lens, Barlow lens, diagonal, aluminum tripod, and accessory tray.

  • 70 mm achromatic refractor
  • 900 mm focal length with listed f/12.9 optical ratio
  • Convertible MPM alt-azimuth and equatorial mount
  • 6×25 optical finder
  • 20 mm, 12.5 mm, and 4 mm eyepieces
  • 1.5x erecting lens and 3x Barlow
  • 90-degree diagonal and aluminum tripod
  • Accessory tray and adjustable support

Manual Day and Night Tracking

The supplied application supports lunar, planetary, star-cluster, bright deep-sky, and terrestrial observation, with the 900 mm focal length providing the listed long-focus format while the MPM mount allows upright alt-azimuth use during daytime and equatorial alignment for manual celestial tracking at night.

Why Choose National Geographic AC 70/900 AZ-EQ MPM Telescope

This model is relevant when one telescope needs both daytime terrestrial flexibility and nighttime equatorial tracking, because the MPM mount changes between alt-azimuth and equatorial modes while the long focal length, multiple eyepieces, Barlow lens, erecting lens, finder, diagonal, tripod, and tray support a broad range of manual observation.

  • Convertible alt-azimuth and equatorial mount
  • 900 mm focal length for lunar and planetary observation
  • Three eyepieces, Barlow, erecting lens, finder, tripod, diagonal, and tray included

National Geographic 2-Year Limited Warranty

The supplied product information lists a 2-year limited warranty for this telescope, and the applicable US warranty terms, mount coverage, optical coverage, accessory coverage, registration requirements, and authorized service process should be confirmed through the current National Geographic or Bresser distribution channel before purchase.

National Geographic AC 70/900 AZ-EQ MPM Telescope Specs

BrandNational Geographic
Full Model CodeNational Geographic 70/900 Multi-Purpose Mount Alt-Azimuth / Equatorial Refractor Telescope (9070000)
Country of OriginChina
Optical DesignAchromatic Refractor (Two-Element Crown-Flint Lens Configuration)
Aperture70 mm (2.76 inches)
Focal Length900 mm
Focal Ratiof/12.9
Optical CoatingsMagnesium Fluoride Anti-Reflection Single-Layer Coating Matrix
Glass MaterialStandard Optical Crown and Flint Glass Element Array
Secondary Mirror Obstruction0 mm (Refractor Design)
Secondary Mirror Obstruction by Diameter0%
Secondary Mirror Obstruction by Area0%
Resolving Power1.65 Arcseconds (Dawes), 1.97 Arcseconds (Rayleigh)
Limiting Visual Magnitude11.9
Highest Useful Magnification140x
Lowest Useful Magnification10x
Optical Tube MaterialExtruded Aluminum Cylindrical Shell with Integral Dew Shield Assembly
Focuser Style & Mechanism1.25-inch Standard Drawtube Focus Housing with Polymer Rack & Pinion Track Gears
Mirror Lock MechanismNo
Optical Tube Dimensions80 mm x 880 mm
Optical Tube Weight1.60 kg (3.53 lbs) - OTA Only / 5.10 kg (11.24 lbs) - Total System with Mount
Mount Attachment TypeIntegrated Vixen-Style Dovetail Mounting Rail Interface via Twin Clamping Tube Rings
Finder Scope Specification6x25 Optical Finder Scope with Crosshair Ring Frame Alignment Fitting
Included Accessories70mm Achromatic OTA, Multi-Purpose Mount (Convertible AZ/EQ Mode), Aluminum Tripod with Accessory Tray, 6x25 Finder Scope, Three Eyepieces (H 20mm - 45x, H 12.5mm - 72x, SR 4mm - 225x), 1.5x Erecting Lens, 3x Barlow Lens, 90-Degree Star Diagonal
Standard Warranty2-Year Limited Warranty
ApplicationDual-mode educational astronomy tracking and crisp planetary evaluation, using an extended long-focal-track setup to naturally limit blue-fringe optical dispersion artifacts.

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