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Sharpstar 100Q F/5.8 quadruplet apochromatic refractor with FPL-53 optics




The Sharpstar 100Q F/5.8 apochromatic refractor is a FPL-53 quadruplet with 100 mm lens diameter and 580 mm focal length designed for astrophotography with corrected and illuminated image circle up to 49 mm. This telescope features a 3" sturdy rack and pinion focuser with 360° rotation and 1:10 microfocuser, 2" and 1.25" adapter included. Telescope comes with sliding dew-shield, CNC rings, Vixen/GP dovetail plate and transport case.

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2 570,00 €

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Sharpstar 100Q F/5.8 quadruplet apochromatic refractor with FPL-53 optics

The Sharpstar 100Q F/5.8 features a quadruplet oblective lens with 100 mm diameter and 580 mm focal length. It is a pure astrograph with a corrected an illuminated image circle up to 49 mm, perfect for full-frame cameras or even larger. Optical design consists in an air-spaced quadruplet apochromat with japanese Ohara S-FPL53 lens delivering very high color correction. Each optical surface is fully multi-coated with a high light-transmission coating.

It an instrument specifically designed for deep-sky imaging, with a special care for compactness (length of only 490 mm with focuser all racked in) and portability (5,3 Kg with rings and Vixen dovetail included). Focal ratio of F/5.8 is pretty fast, the short focal length and big corrected field of view suggest the use of large DSLR or CCD/CMOS cameras. Given the focal length of 464 mm and big corrected image circle we highly suggest the use of cooled CMOS cameras such as ASI071MC Pro and QHY168C, ASI128MC Pro and QHY128C, etc. for impressive wide-field panoramas.

Even if the instrument has been designed for astrophotography, the Sharpstar 100Q F/5.8 delivers good performances also on visual observations thanks to the very good color correction and optical quality.

The telescope features an oversized 3" rack & pinion focuser with 1:10 micro-focuser. 2" and 1.25" adapter are included. It allows for 360° full rotation thanks to a removable camera rotator. There are also several threads available for direct accessories attachment: M78x1 female, M74x1 male and M68x1 female. Focuser allows for 360° rotation.

Mechanical quality of this Sharpstar 100Q is top-notch: OTA is made with CNC machined light aluminium alloys, light and sturdy. Focuser is of very good quality. Even experienced customers will appreciate quality of this instruments. Nothing is left to chance!

Technical data

  • Optical design: air-spaced apochromatic triplet with japanese Ohara S-FPL53 central lens and menuscus field corrector permanently mounted into optical tube.
  • Aperture: 100 mm
  • Focal length: 580 mm
  • Focal ratio: F/5.8
  • Coating: yes, Fully Multi-Coated
  • OTA length: 490-605 mm
  • Outer tube diameter: 114mm
  • OTA made of light aluminium alloys, CNC machined
  • Backfocus: 125 mm from 2" attachment, 145 mm from female M68x1 thread.
  • Weight: 4.95 Kg OTA only - 5.3 Kg with rings and Vixen/GP dovetail - 8.8 Kg with case included

Scope of delivery

  • 3" focuser with 2" and 1.25" reduction. 1:10 micro-focuser and 360° rotation. Available threads: M78x1 female, M74x1 male and M68x1 female
  • Retractible dewshield
  • Finder shoe compatible with Vixen, Skywatcher, ...
  • 114 mm CNC rings
  • Vixen/GP dovetail plate
  • Transport case

Optical and mechanical check before delivery

Sharpstar inspects any instrument with their interpherometer in order to deliver the highest quality possible. Any optics sold by Skypoint is thouroughly tested with our optical bench. Testing includes also a deep mechanical check so that you will be sure to get a perfectly collimated instrument without mechanical defects that may occurs during import from China.

Skypoint, thanks to his pluriannual expertize, can assis you to complete your setup. We are also able to design and manufacture high-precision mechanical adapters for your CCD or CMOS camera. Contact us for info!

We ship worldwide, contact us for a quotation

    Leasing12 installments at zero interest

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