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Askar SQA106 106mm f/4.8 Quintuplet APO

Askar SQA106 106mm f/4.8 Quintuplet APO

by Askar
SKU ASK-SQA106
$3,395.00 USD - $3,395.00 USD
$3,395.00 USD
$3,395.00 USD - $3,395.00 USD
$3,395.00 USD
  • Quintuplet air-spaced lens design
  • Aperture of 106mm
  • Focal Length of 509mm
  • Fast Focal Ratio of f/4.8
Availability:
Backordered
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More information
  • Description
  • Specifications
  • In the Box

  • Explore the night sky with the SQA106, an aperture quintuplet air-spaced SD Glass Petzval Astrograph to deliver stunning astrophotography results. This telescope is tailored for both newcomers and seasoned astrophotographers.

    Excellent Star Performance

    Quintuplet air-spaced lens design, including 2 pieces of SD glass. The SQA106 supports a 55mm image circle. The central star point has an RMS radius of less than 1.7 μm, and the star point at 55 mm is less than 2.2 μm, showing a super-fine star point. It also has excellent full-field illumi- nation and MTF data. The relative illumination can be higher than 90% at 44 mm image circle.

    Integrated self-flattened design, no need for additional flatteners, and no need for additional calculation of the back focus. Between 48mm and 78mm connection dis- tance, users can directly use it for shooting after the OTA is in focus.

    Retractable Dew Shield

    ZWO Camera TEC Cooling

    The dew shield is a retractable design that can be pulled out. It protects the lens from the impact of external and internal light and protects the lens itself.

    LARGE, RIGID DUAL-SPEED FOCUSER

    Dual-speed rack-and-pinion large 2.8-inch rigid focus- er, which can be compatible with most motorized fo- cusers on the market. The focusing travel is 30 mm, and the focuser tube is engraved with high-precision scales. The entire focuser barrel is CNC machined with an anti-reflective internal design and matting paint, providing extra measures to eliminate stray light.

    DIVERSIFIED PHOTOGRAPHY SCENE APPLICATIONS

    In addition to connecting to the astronomical camera for astrophotography, the SQA106 can also be connected to a mirrorless camera or DSLR camera for shooting.

    Dovetail Plate

    The standard Losmandy-style 300mm dovetail plate is easy to dismantle and install.

    Finder Bases

    On both sides of the focuser, there are two finder bases, which not only elimate the need for disassembling when chaning the position of the finder scope but also provide additional mounting positions for other astronomical accessories.

    Integrated Tube Ring

    Enlarged hand screws allow users to open and close the tube ring without additional tools.

    There are 6 M4 and M6 threaded holes on both sides of the tube ring, which are conve- nient for installing the base or dovetail plate and connecting different accessories. You can even set up another set of OTA for shooting.

    The handle on the top of the tube ring is slotted with a multifunctional finder base, which can be used to install astronomical accessories.

  • Aperture Size

    106mm

    Focal Length

    509mm

    Focal Ratio

    f/4.8

    Objective Lens

    Quintuplet petzval APO（including two pieces of SD glass)

    Total Length

    516mm(when the dew shield is contracted), 586mm(when the dew shield is stretched)

    Format Specifications

    full frame（44mm），upgrade to the medium format(55mm)

    OTA weight

    5.82kg

    Gross weight（including tube ring and dovetail plate）

    8.12kg

    Rear-end thread type

    M48/M54/M68 adapters

    Rear-end connection distance

    Support 40-70mm range (Recommended connection length is 55mm)

    Standard package items

    a SQA106 OTA, an Oxford cloth case
  • a SQA106 OTA, an Oxford cloth case

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