National Geographic AC 70/900 AZ-EQ MPM Telescope
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
In Stock
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
| Brand | National Geographic |
| Full Model Code | National Geographic 70/900 Multi-Purpose Mount Alt-Azimuth / Equatorial Refractor Telescope (9070000) |
| Country of Origin | China |
| Optical Design | Achromatic Refractor (Two-Element Crown-Flint Lens Configuration) |
| Aperture | 70 mm (2.76 inches) |
| Focal Length | 900 mm |
| Focal Ratio | f/12.9 |
| Optical Coatings | Magnesium Fluoride Anti-Reflection Single-Layer Coating Matrix |
| Glass Material | Standard Optical Crown and Flint Glass Element Array |
| Secondary Mirror Obstruction | 0 mm (Refractor Design) |
| Secondary Mirror Obstruction by Diameter | 0% |
| Secondary Mirror Obstruction by Area | 0% |
| Resolving Power | 1.65 Arcseconds (Dawes), 1.97 Arcseconds (Rayleigh) |
| Limiting Visual Magnitude | 11.9 |
| Highest Useful Magnification | 140x |
| Lowest Useful Magnification | 10x |
| Optical Tube Material | Extruded Aluminum Cylindrical Shell with Integral Dew Shield Assembly |
| Focuser Style & Mechanism | 1.25-inch Standard Drawtube Focus Housing with Polymer Rack & Pinion Track Gears |
| Mirror Lock Mechanism | No |
| Optical Tube Dimensions | 80 mm x 880 mm |
| Optical Tube Weight | 1.60 kg (3.53 lbs) - OTA Only / 5.10 kg (11.24 lbs) - Total System with Mount |
| Mount Attachment Type | Integrated Vixen-Style Dovetail Mounting Rail Interface via Twin Clamping Tube Rings |
| Finder Scope Specification | 6x25 Optical Finder Scope with Crosshair Ring Frame Alignment Fitting |
| Included Accessories | 70mm 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 Warranty | 2-Year Limited Warranty |
| Application | Dual-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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