If you are looking for a high quality small SD glass refractor, this is it!
This is a compact AP-SM Mount package with APP-TL130 tripod. It includes the SD refractor which produces clear and high contrast views.
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SD81S Optical tube + AP-SM Mount + APP-TL130 Tripod
This package includes a compact SD81S refractor telescope, equipped with a high-performance SD lens. It comes with an AP equatorial mount, made up of several AP modules, and a lightweight APP-TL 130 aluminium tripod. The set includes two eyepieces as standard accessories, and the telescope is designed for quick and easy setup. Additionally, you can power it using AA batteries or an external USB mobile battery.
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A standard and versatile equatorial mount combining lightweight body and ease of use.
This is a lightweight and compact equatorial mount, weighing just 3.9 kg. You can manually point the telescope’s optical tube to your desired celestial object, and once you release it, the mount will automatically track the object. It’s easy to use, even for beginners. You can also fine-tune the position using slow-motion controls, either with the manual knobs or through the STAR BOOK ONE controller.
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STAR BOOK ONE controller
The STAR BOOK ONE allows you to move the mount in X and Y directions (or R.A and Dec axes) either quickly or slowly. Versatile options are available for enjoying celestial observation.
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Composed of the modules
By rearranging modules and adding options, you can organize the AP mount system according to your purpose or a level of your observing skills. It will become your long lasting friend.
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APP-TL130 Tripod
A highly compact and lightweight tripod combining durability and ease of use. The legs of the tripod are 130cm in length if fully extended, but you can shorten the legs to 60cm long when storing the tripod. A retractable protection rubber of the metal frrules allows for using the tripod according to your set up environment. It is usable with GP2 mounts and PORTA II mount also in addition to the AP mount.
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SD81S optical tube assembly
Vixen apochromatic refractors feature "Super extra-low Dispersion" SD optical glass in its objective lens. The SD glass produces clear and high contrast viewing, virtually free of false colour. Brighter F7.7 images will satisfy the most demanding visual astronomer or astro-photographer. The SD81S comes with a flip mirror diagonal that allows you to switch the light pass quickly from straight through to angled viewing.
Specifications
Optical Tube
| Objective Lens | D=81mm, SD Apochromatic, Multi Coated |
| Focal length (Focal ratio) | F=625mm (f7.7) |
| Resolving power / Limiting magnitude | 1.43 arc seconds / 11.3 |
| Light gathering power | 134× unaided eye |
| Dimensions / Weight | 90mm dia × 585mm long / 3.6kg (Net 2.3kg) |
| Finder scope | XY red Dot Finder Ⅱ (zero power) |
Focuser
| Focusing mechanism | Rack-and-pinion (with focus lock) |
| Adapter threads / Visual back | 60mm and 42mm for T-ring / 50.8mm push fit |
| Accessories | Tube rings, Dovetail tube plate, Metal carry handle |
| Eyepieces | SLV20mm (31X, 97' field of view), SLV5mm (125X, 24' field of view) |
| Leg type, material | 3-section aluminium legs with quick-release leg clamps |
| Size / Weight | Adjustable from 570mm to 1296mm in length, from 526mm to 1159mm in height, setup radius from 350mm to 710mm / 3.0kg |
Others
| Accessories | Parts case, Counterweight 1 kg × 1, 1.9kg × 1 |
| Photography | Usable with Prime focus, Eyepiece projection and Aforcal imaging |
| Solar observation | Available with sun projection screen set B |
| Total weight | 13.1kg (without batteries and without eyepieces) |
