200 mm (8") f6 Dobsonian, focal length 1200 mm
A very exciting Dobsonian from Orion. There is enough aperture for watching nebulae and galaxies. But, due to little obstruction from the 50 mm secondary, the instrument also works great as a high resolution and high contrast planetary telescope.
The advantages of a Dobsonian:
Since decades, Dobsonians gain increasing popularity, as they are easy to use, simple to set-up and very stable.
The additional advantages of Dobsonians from Orion:
-- The tube is mounted in rings, so you can shift it for balancing and turn the focuser in a pleasant position.
-- Put a dovetail plate to the rings and set the telescope on an equatorial mount within minutes. Now you have a powerful instrument for photography.
-- The telescopes are extremely lightweight, so even a 16" can be moved by one person. But they keep the optical alignment.
We only sell Orion Dobsonians in the DELUXE version:
The mirror:
1/8 Lambda p/v wave, 0.95 Strehl (Zygo test protocol), 97% reflectivity - an unusually bright, sharp image is the result.
The mirror cell: A 9-point primary mirror cell, computer optimized, which keeps the mirror without tension, is offered by the manufacturer. All Orion Dobsonians from Teleskop Service feature this cell!
The 2" ACU Crayford focuser:
All Orion Deluxe Dobsonians have a precise 2" Crayford focuser with adaption to 1.25". Made of metal, it allows exact focusing without shaking. The fosuser is a low-profile type, necessary for using a smaller secondary mirror.
Optionally, you can get a 1:10 micro transmission for more comfortable focusing.
The rocker box of aluminium:
It is stiffer than a rocker box of wood, but weights less.
-- lightweight, so better to transport
-- can be detached and flattened within minutes
-- teflon bearings for smooth adjustments. Even at high magnification, you can easily center the object in the middle.
-- high diameter altitude wheels for smooth altitude adjustment
Specifications:
Primary Mirror Diameter: 200 mm
Focal Length: 1200 mm
Focal Ratio: f/6
Reflectivity: 97%
Mirror Quality: 1/8 Lambda p/v wave with test report
Tube Weight: 8 kg
Tube Diameter: 225 mm
Tube Length: 1130 mm
Tube Material: Aluminum
Secondary Size: 50 mm
Mirror Cell: CNC 9 point
Focuser: ACU-2S micro adjust
Complete Weight: 19 kg
Scope of Delivery:
-- Dobsonian with focuser and tube rings
-- 2 Eyepieces
-- Finder Scope 8x50
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