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Vixen Telescope AP-SD81SII

Vixen Telescope AP-SD81SII —
Vixen Telescope AP-SD81SII
Vixen Telescope AP-SD81SII
Vixen Telescope AP-SD81SII
Vixen Telescope AP-SD81SII —
Vixen Telescope AP-SD81SII
Vixen Telescope AP-SD81SII
Vixen Telescope AP-SD81SII

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Suggested retail price: Contact local dealer

JAN
4955295261352

AP Mount package, combined with the SD81SII optical tube assembly.

This set includes the compact SD81SII optical tube with a high-performance SD objective lens, an AP mount composed of modular parts, and the lightweight APP-TL130 tripod. Two eyepieces are also provided as standard, allowing you to begin observing immediately.

The SD81SII optical tube is the successor to the SD81S, and its photographic performance has been enhanced by introducing a ring spacer to eliminate light streaks.

Vixen Telescope AP-SD81SII Description

  • SD81SII Optical Tube Assembly + AP Equatorial Mount + APP-TL130 Tripod

    This set includes an SD81SII optical tube with the high-performance SD lens, an AP equatorial mount, and an APP-TL130 tripod. Two eyepieces are also provided, allowing you to start observing immediately upon setup.

  • SD81SII Optical Tube Assembly

    A high-performance photo-visual SD81SII featuring an SD (Super ED) glass lens that effectively suppresses chromatic aberration for clear and sharp star images. Its F7.7 focal ratio provides a well-balanced 625 mm focal length with an 81 mm effective aperture, making it suitable for a wide range of applications, from planetary observation to photographing nebulae and star clusters.
    When combined with an SD Reducer HD Kit and an SD Flattener HD Kit (both sold separately), it achieves a 44 mm image circle, covering the full-frame DSLR sensor. The conventional three spacers around the objective lens have been replaced with a ring-shaped spacer, eliminating light streaks and producing aesthetically pleasing star images.
    The optical tube comes with a Flip Mirror Diagonal that allows quick switching between eyepieces of different magnifications with a single dial. Switching the optical path from naked-eye viewing to astro-imaging is simple with a flip of the straight-through viewing path. A dovetail slide bar M allows the optical tube to be positioned at its center of gravity, and a metal carry handle enables quick attachment, detachment, and transport.
    These features combine to deliver excellent performance across a wide variety of astronomical observing and astrophotography scenarios.

  • The AP Equatorial Mount combines surprising lightness with easy operation, offering a full-fledged telescope system.

    The telescope tube can be moved by hand freely and stays in place when released, allowing even beginners to start using it immediately without any complicated operations. For fine directional adjustments, merely use the fine adjustment knob. With an optional Polar Meter, anyone can easily align the telescope with the polar axis for quick, hassle-free astronomical observation (simple alignment method). When paired with an optional polar alignment scope PF-LII, accurate alignment can also be achieved with ease.

  • Modular Structure

    By rearranging modules and adding optional components, you can configure the system to suit your needs and skill level, allowing a single piece of equipment to be used effectively for many years.

  • APP-TL130 Tripod

    It features three-section telescopic legs that extend to 130cm, the same length as a standard astronomical telescope tripod, yet can be shortened to about 60cm for compact storage. It combines the sturdiness of a telescope tripod with the portability and ease of storage of a camera tripod. The legs have two options at their feet, a common feature on camera tripod legs, allowing you to use either rubber or spike feet, depending on your setup. Rubber tips are recommended for indoor use to protect the flooring. In addition to use with the AP series mounts, it is also compatible with the GP2 equatorial mount and the Porta II altazimuth mount.

Specifications

Optical Tube Part

  • Objective Lens (Primary Mirror) / Effective Aperture
    81mm SD Apochromat Multi-Coated
  • Focal Length (Focal Ratio F)
    625mm（F7.7）
  • Resolution・Limiting Magnitude
    1.43 arc sec., 11.3 mag.134x unaided eye
  • Size・Weight
    Length 585mm, outer diameter 90mm, 3.6kg (Main body 2.3kg)
  • Finder Scope
    XY Red Dot Finder Ⅱ (one-power aiming device)

Eyepiece Part

  • Focusing System
    Rack and Pinion
  • Threads / Visual Back
    Screw-in / 60mm, 42mm T-ring screwPush-fit: 50.8mm, 31.7mm (with Flip Mirror Diagonal)
  • Eyepiece (31.7mm barrel)
    SLV20mm (31x, 97min. actual field of view)SLV5mm (125x, 24min. actual field of view)

Tripod

  • Material・Form
    Large hexagonal aluminum two-stage extension legs (one-touch type)
  • Size・Weight
    Legs 570⇔1,296mm in length, Height (from ground) 526⇔1,159mm. 598.4mm overall tripod lengthSetting radius 350⇔710mm・3.0kg

Others

  • Main Accessories
    Parts case, counterweight 1kg x 1, 1.9kg x 1
  • Solar Observation
    Used with a Sun Projection Screen Set B (sold separately) (for short-term observation)
  • Weight
    13.1kg (excluding eyepiece)

Set Contents

  • SD81SII OTA
  • AP Mount
  • APP-TL130 Tripod
  • Eyepiece SLV20mm
  • Eyepiece SLV5mm

Accessories

  • Eyepieces (SLV20mm / SLV5mm)
  • Parts Case
  • Counterweight 1kg x 1, 1.9kg x 1
For availability of products, please contact our local dealers. The specifications are subject to change without notice.

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