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Altair Astro Starwave Ascent 80mm F7 ED APO - 2

Altair Astro Starwave Ascent 80mm F7 ED APO

AA_SWAS80ED-OTA
€379.34

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Featuring Genuine ED optics, the Starwave ASCENT 80mm F7 ED Doublet refractor has an 80mm objective lens capable of both visual observation and wide-field imaging in one telescope.
  • ED optics offer improved colour correction, which produces a higher contrast image, whilst allowing a short, portable telescope tube.
  • All metal. There are no plastic parts, anywhere in this product except for the rear dust cap.
  • Proper Dual Speed Geared focuser with micro focusing (essential for fine detail).
  • The focuser is imaging capable and the rear 2" Focuser push-fit adapter has 3x thumbscrews and a brass compression ring. Diagonal barrels aren't marred, cameras are firmly held and aligned.
  • Flat field fast focal ratio F5.6 imaging with the optional 0.8x field flattener/reducer.
What you get:
  • Starwave 80mm F7 ED FPL51 Doublet Objective, with full multicoatings on all surfaces in a collimatable lens cell with QC serial number.
  • 2.5" Dual Speed Geared focuser with 1:10 ratio fine-focusing knob.
  • Optional 9x50 finder with metal body and front focusing lens. Metal mounting stalk is able to attach direct to the optical tube (screws provided) or with the Altair Universal Quick Release Finder Bracket (code: UNIFBR-QRB). A high quality 23mm wide field eyepiece with laser etched, independently focusing reticule.
  • 2"-1.25" Push-Fit Adapter with non-marring brass compression ring.
  • Front push-fit metal dust cap, rear plastic plug style dust cap.
  • Genuine CNC machined tube rings, fully adjustable for balance and rotation.
  • Metal dovetail plate so you can use the scope with just about any telescope mount including iOptron, Sky-Watcher.
  • Metal dewshield 103mm Outer Diameter 15cm length, non-retractable, can be unscrewed for lens cleaning.
  • The optical tube is 54cm length and weighs about 2.8kg.(including tube rings and Vixen plate)

The ED advantage

When compared to small Achromatic refractors of similar size, length and focal ratio, the Starwave 80ED offers better mechanics for easier focusing, and truer colour rendition thanks to the ED optics. The Starwave 80 ED delivers a sharp 'contrasty' image with good colour correction and tight star images. The 80mm aperture gathers about 131 times more light than the human eye, and in a dark-sky location, observation of star clouds and larger more extended objects is most enjoyable. With a higher power eyepiece or Barlow lens, this telescope will show the planetary disc of Jupiter, the Great Red Spot, and the major cloud bands visible as irregular stripes across the disc, as well as the four largest Galilean moons and their movements from hour-to-hour. Saturn's rings and Cassini division are easy to see at higher magnifications.

The convenience of a refractor

This is the perfect scope to get you, family and friends familiar with the night-sky, or started in astro-photography. Unlike most starter-telescopes, both optical and mechanical quality are very good. We don't sacrifice one for the other. Our philosophy is not to start with low quality equipment, but to include high quality optics in a beginner telescope at a good price to make using the product enjoyable. The Starwave 80 ED is an ideal beginner's choice for astrophotography with your DSLR or Altair camera. It is much easier to use than a Newtonian reflector, with a smaller tube which is easier to mount and keep steady. Unlike reflectors, the optics do not require frequent collimation (alignment) before use, so the product is virtually maintenance free aside from the usual yearly cleaning of the lens. For visual observerving, the Starwave 80ED fits almost any telescope mount. Please contact us for recommendations based on your intended observing style.

Specifications

  • Optical Design: Fully Multicoated ED Doublet lens with FPL51 ED element in collimatable cell.
  • Aperture (mm): 80 mm.
  • Focal Length: 560 mm.
  • Focal Ratio: F7 (F5.6 with 0.8x reducer).
  • Optional Finderscope: 9x50 focusing objective (206.6mm focal length).
  • Optional Finderscope Eyepiece: 23mm .focal length with laser etched reticule, independent focusing for eyeglass users.
  • Highest Useful Magnification: 157 x
  • Lowest Useful Magnification: 11 x
  • Limiting Stellar Magnitude: 12
  • Resolution (Rayleigh): 1.74 arc seconds
  • Resolution (Dawes): 1.45 arc seconds
  • Light Gathering Power (Compared to human eye): 131 x approx.
  • Optical Tube Length: 54cm
  • Optical Tube Weight: 2.8kg Approx.
  • Vixen style bar to fit most mounts included.
  • CNC Machined split-style tube rings with M6 mounting holes included.
  • Optical Design: Fully Multicoated ED Doublet lens with FPL51 ED element in collimatable cell.
  • Aperture (mm): 80 mm.
  • Focal Length: 560 mm.
  • Focal Ratio: F7 (F5.6 with 0.8x reducer).
  • Optional Finderscope: 9x50 focusing objective (206.6mm focal length).
  • Optional Finderscope Eyepiece: 23mm .focal length with laser etched reticule, independent focusing for eyeglass users.
  • Highest Useful Magnification: 157 x
  • Lowest Useful Magnification: 11 x
  • Limiting Stellar Magnitude: 12
  • Resolution (Rayleigh): 1.74 arc seconds
  • Resolution (Dawes): 1.45 arc seconds
  • Light Gathering Power (Compared to human eye): 131 x approx.
  • Optical Tube Length: 54cm
  • Optical Tube Weight: 2.8kg Approx.
  • Vixen style bar to fit most mounts included.
  • CNC Machined split-style tube rings with M6 mounting holes included.
Telescope System
Optical Tube Only (OTA)
Telescope type
Refractor
Telescope Series
Starwave
Telescope Lens type
Doublet (2 lenses)
Telescope Aperture (Range)
50mm - 99mm
Telescope Focal Length (Range)
500mm - 1000mm
Telescope Focal Ratio (Range)
F7 - F10
Telescope Aperture (mm)
80mm
Telescope Focal Length (mm)
560mm
Telescope Focal Ratio (F)
F7

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