Opticstar - AR80S Gold DS 80mm f/5 Apochromat Refractor Optical Tube Assembly

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The Opticstar AR80S Gold Dual Speed short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope.

SKU: OSRAR80SGD
Manufactured by:
Opticstar
 

Product Description

Opticstar AR80S Gold DS 80mm f/5 Apochromat Refractor Optical Tube Assembly

 

 

Overview:

  • Lens diameter: 80mm
  • Focal ratio: f/5
  • Achromatic refractor
  • Fully multi-coated doublet
  • Retractable dew shield
  • High quality all-metal construction
  • Dual Speed Crayford 2" & 1.25" focuser
  • Rotatable focuser
  • Knife-edge baffles
  • Dovetail included
  • Nylon soft bag

 

The Opticstar AR80S Gold Dual Speed short-tube refractor is ideal as a portable scope and can be used for observing, imaging or as a guide scope. It uses a 80mm achromatic doublet that is fully broad-band multicoated to increase light transmission.

The optical tube greatly benefits from metal knife-edge baffles (not the plastic less effective step type) that prevent stray light outside the field of view from reaching the focal plane. Knife-edge baffles markedly increase image contrast.

The dual speed Crayford focuser, main tube and lens assembly are screwed into each other for maximum rigidity, no peripheral screws are used as they can compromise the rigidity of the telescope.

The AR80S (f5) Gold Dual Speed refractor features a smooth dual speed Crayford focuser with a 2" drawtube (with 1.25” adapter), retractable metal dew shield, CNC rings with 1/4" photo tripod threads, broadband fully multi-coated optics and comes complete with a quality padded travel-case. With a focal length of 400mm (f/5) the AR80S is very well suited for wide field astrophotography, guiding as well as nature photography.

With a minimum total length of only 40cm and 80mm aperture the AR80S Gold is the perfect travel scope. All you need to start using the AR80S Gold is a photographic tripod, diagonal and eyepieces.

 

Package Includes:

  • Opticstar 80mm f/5 optical tube assembly (OTA).
  • Dual Speed Crayford 2" & 1.25" rotatable focuser.
  • Dovetail Bar.
  • Free: Nylon padded case

 

 

 

 

 

 

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Specifications

Name Opticstar - AR80S Gold DS 80mm f/5 Apochromat Refractor Optical Tube Assembly
Manufacturer Opticstar
Model OSRAR80SGD
Custom Stock Status Available - Ships in 3-5 Days
Aperture 80mm
Dew shield Retractable with metal screw-type cap
Finderscope Saddle
Focal Length 400mm
Focal Ratio F/5
Focuser Dual speed Crayford, rotatable
Objective Achromatic doublet
Optical Coatings Broadband FMC (fully multi-coated)
Optical Design Short, suitable for use with bino-viewers (with focal reducer)
Optical Tube Internally anti-reflection coated, knife-edge baffles
Optical tube diameter 97mm
Optical Tube Weight 2kg with single speed focuser or 2.1kg with dual speed focuser with rings included

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