Starwave ASCENT 80mm ED Triplet APO F6 Refractor

Product Description

Suitable for keen visual astronomers, or the astrophotographer who wants a portable scope for imaging, the triplet FCD100 Synthetic Fluorite glass ED lens system includes a premium Japanese Hoya FCD-100 ED glass element, with equivalent Abbe number to FPL53, but a lower price. High transmission multi-coatings are used on all air-to-glass surfaces for high contrast.

This results in APO level colour correction, and a refractor which gives great performance per millimetre of aperture

Reducer - Flattener Included
An F4.8 0.8X reducer flattener (Code RED80EDTM63) is included with rear male M48 Thread and standard 55mm spacing to the camera sensor, producing a focal length of 384mm. The reducer screws into the rear of the focuser ensuring stability and the scope becomes a 5-element F4.8 astrograph.

Precision Focuser
The Dual Speed 1:10 ratio micro-focuser gives a good balance between lifting power and stability for large eyepieces or cameras. A smooth brass rack and pinion gear with slanted teeth to reduce backlash to negligible levels. The focuser end-cap has a 2" push-fit adaptor with 3x stainless steel thumbscrews for easy tightening. A 1.25-2" push-fit adaptor with brass insert is included.

CNC Lightweight Construction
The tube is made from light weight aluminium alloy with CNC machined components including lightweight CNC tube rings. A tough matte pearl powder coated tube and hard-anodised fittings give durability and classic looks, as well as fast cool-down compared to telescopes with insulating carbon fibre tubes. An aluminium push-fit lens cap and 1.75" Vixen style dovetail bar completes the package.

Starwave ASCENT 80 ED Triplet APO Specifications & Features:
Optical tube with air-spaced 80mm F6 Triplet ED lens system (480mm focal length)
Hoya FCD100 ED (SD) glass element and mating elements housed in a precision adjustable CNC machined lens cell with temperature compensation interleaving.
Super-high transmission multi-coatings on all air to glass surfaces.
Resolving Power (Dawes Limit) 1.45 arc seconds
Visual Limiting Magnitude 12.2 maximum
Weight approx. 3kg, optical tube length with dew-shield retracted, 39cm.
Precision CNC machined components and tube made from light, tough aluminium alloy with matte powder coat and hard anodising.
Retractable lens shade / dew shield.
Rack 'n Pinion" Geared dual speed focuser with 1:10 micro-focuser with a camera rotator on the back enabling easy framing.
2" to 1.25" reducer with brass compression ring and 3x Thumbscrews included.
Front aluminium push-fit lens cap, rear plastic 1.25" dust plug.
Standard 1.75" dovetail bar with stainless steel M6 cap-head screws included.
Tube Rings with M6 threaded holes compatible with Altair and most other mounting dovetail plates and bars.