Opticstar AR80S Gold 80mm f/5 Achromatic Refractor Guidescope with Rings, Dovetail, and Crayford Focuser
- Lens diameter: 80mm
- Focal ratio: f/5
- Achromatic refractor
- Fully multi-coated doublet
- Retractable dew shield
- High quality all-metal construction
- Crayford 2" & 1.25" focuser
- Knife-edge baffles
- Collimating rings and dovetail included
- 1.25" Extension tube included
- Nylon padded case
The AR80S Guidescope kit consists of the Opticstar AR80S telescope, set of collimating rings and Vixen type dovetail to mount the telescope to standard mount saddles as found on the Sky-Watchers, Celestron CG-5, Vixen and other mounts.
The Opticstar AR80S Gold 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 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 Gold refractor features a smooth 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.
|Name||Opticstar - AR80S Gold 80mm f/5 Achromatic Refractor Guidescope with Rings, Dovetail, and Crayford Focuser|
|Manufacturer Part No||OSRAR80SGS|
|Dew shield||Retractable with metal screw-type cap|
|Focuser||Single speed Crayford|
|Optical Coatings||Broadband FMC (fully multi-coated)|
|Optical Design||Short, suitable for use with bino-viewers|
|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|