Best for serious astrophotographers who demand a perfect imaging platform with user-friendly functions that allow for comfortable operation.
The AXD2-A103S package comes with the quad element AX103S apochromatic system that features SD glass for uncompromising optical performance, the pinnacle of this aperture class.
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Superior performance and ease of use.

Versatile functions and high level of accuracy demanded by advanced astrophotographer and ease of use appreciated by novice astronomer are merged into the AXD2 mount with STAR BOOK TEN controller.
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AX103S optical tube assembly.

The advanced optical design produces crystal-clear, sharp and high contrast images with no trace of false colour. The star images are as small as 20 microns at the edge of the imaging field. A premium AS coatings applied to each surface to the lenses enhances visible light transmission to 99.5% on any single surface (400nm - 700nm) and assure extremely high light transmission.
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Vixen's flagship equatorial mount.

The AXD2 mount is designed for both superior performance and ease of use. The revolutionary advanced star chart go-to navigation controller STAR BOOK TEN is the best companion for your observing sessions.
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Polar alignment scope.

A 6x20mm polar scope with illuminated reticle is provided with the AXD2 mount. With the help of a built-in Polaris position scale, it achieves an easy and accurate polar alignment within 3 arc minutes in the northern hemisphere.
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STAR BOOK TEN star chart go-to navigation controller.

The STAR BOOK TEN features intuitive 'Star-Chart Go-To' system with high definition colour LCD display. The position of the telescope, the target and other useful information are displayed on the screen in detail. The night vision feature illuminates the whole screen in red, if applied, and will limit the brightness to the observer's eyes.
Mount
| Feature | Description |
|---|---|
| R.A. Slow Motion | Worm and wheel gears with 270-tooth whole circle micro movement, 135mm in diameter, made of brass |
| Dec. Slow Motion | Worm and wheel gears with 216-tooth whole circle micro movement, 108mm in diameter, made of brass |
| Worm Shaft Gear | 14.5mm in diameter, made of brass |
| R.A. Axis | 50mm in diameter, made of A7075 super aluminium-alloy |
| Dec. Axis | 50mm in diameter, made of A7075 super aluminium-alloy |
| Number of Bearings | 21 pieces |
| Counterweight Bar | 25mm in diameter, retractable |
| On-screen R.A. Display / Setting Circle | 10 arc minute increments / 1 arc minute increment with vernier |
| On-screen Dec. Display / Setting Circle | 2 degrees increments / 10 minutes (0.167 degrees) increments with vernier |
| Polar Axis Scope | Pre-installed 6X20mm finder scope, 8 degrees field of view, automatic turning off dark-field illuminator, 3 degrees or less setting accuracy, Battery: CR2032 (supplied for checking purpose), 3 stars alignment (Polaris, delta UMI, 51 Cep or Sigma, Tau, Chi in Octantis) |
| Altitude Adjustment | Latitude adjustable between 0° and 70°, divided into 3 zones for high, middle, and low latitude, adjustable +/- 15 degrees per zone, altitude scale in 2 degrees increments, fine adjustments with two tangent screw bolts (0.5° per rotation) |
| Azimuth Adjustment | Fine adjustments with twin screw knobs (1° per rotation), adjustable range +/- 7 degrees |
| Motor Drive | Pulse motors with micro-step motion control (400 pps) |
| Star Chart Go-to | Automatic go-to slewing and high precision tracking with STAR BOOK TEN, 800× sidereal rate at maximum slewing speed |
| Photographic Loading Weight | 30 kg (Maximum torque load: 750 kg/cm at a point 25cm from the R.A and Dec axes intersection) |
| Controller Port | D-sub9pin male connector |
| Power Port | DC12V EIAJ RC5320A Class 4 (centre plus), Electricity consumption: 0.45A to 2.5A (from 0.45A to 2.2A at 15kg loading weight) |
| Dimensions | 457mm × 465mm × 152mm |
| Weight | 25 kg (without counterweight) |
| Counterweights | 1.5kg × 1, 7kg × 1 |
Optical Tube Assembly
| Feature | Description |
|---|---|
| Objective Lens, Effective Aperture | 103mm, triplet SD apochromatic, multicoated |
| Focal Length (Focal Ratio) | 825mm (F8.0) |
| Resolving Power / Limiting Magnitude | 1.13 arc seconds / 11.8 |
| Light Gathering Power | 217× unaided eye |
| Dimensions / Weight | 115mm dia × 762mm long (retractable to 670mm long), 6.4kg (Net 4.6kg) |
| Finder Scope | 7×50mm with dark-field illuminated reticle, 7 degrees field of view |
Eyepiece Part
| Feature | Description |
|---|---|
| Adapter Threads / Visual Back | 60mm, 42mm for T-ring / 50.8mm and 31.7mm push fit with flip mirror diagonal |
| Eyepiece (31.7mm) | Optional |
Tripod
| Feature | Description |
|---|---|
| Tripod Legs | Large aluminium pipe legs, 55mm thick, extendable |
| Size / Weight | Pipe legs adjustable from 760mm to 1080mm in length, 690mm to 915mm in height, setup circle from 440mm to 570mm in radius / 10.3kg |
Others
| Feature | Description |
|---|---|
| Photography | Usable with Prime focus, Eyepiece projection, and Afocal imaging |
| Solar Observation | Available with Sun projection screen set B |
| Total Weight | 55.3kg |
Included:
- AX103S Optical Tube Assembly
- AXD2 Equatorial Mount
- Dovetail-plate Mounting Block
- AXD Half Pillar
- AXD-TR102 Aluminium Tripod
- AXD Counterweight 1.5kg
- AXD Counterweight 7kg