Note: a Dobsonian telescope is a Newtonian reflector telescope (invented by Newton, of course) but mounted in a very inexpensive way. Used a Baader 90+ percent neutral density filter on my 31 mm Nagler for the Moon photo and just a little post-processing in Aperture. Skip to content . Dobsonian Telescopes; Maksutov-Cassegrain Telescopes; Maksutov-Newtonian Telescopes; Newtonian Reflector Telescopes; Reverse Newtonian Binocular Telescopes; ... 30-39mm; 40-49mm; 50-59mm; Eyepieces by Barrel Size. The big box was waiting on the trailer up at my observatory, Pukemaru Observatory. 1.25" 2" 3" Accessories. - Telescope Components: - Primary Mirror Cells - Secondary Mounts/Spiders - Large Diameter Altitude Bearings - Focusers - Finderscopes, etc. Mirrors: I am happy to build telescopes around a customers own mirrors. The observatory is 4.8m wide, 7.2m long with a slide-off roof that comes 2/3 of the way off. Use high powers to enhance the view. The 36-inch scope is actually built and photographed, with delivery scheduled for this summer, although the 40- and 50-inch scopes still exist only as drawings. SKU: APT-DT6 . I also have fold-down walls on three sides. The Spicaeyes Dobsonian Truss Tube Telescope is a complete telescope system. Adapters. Great Red Spot’s Jupiter Series 40-inch Dobsonian Reflector Telescope has a focal ratio of f/3.6. Image 1: Designer, builder Tom Osypowski next to the Equatorial Platforms 32-inch f/2.8 SlipStream. Tim Conners, 25" owner in Statesboro, Georgea April 22, 2013. Apertura DT6 6" Dobsonian Telescope - DT6 . Find an object fast with the Digital Setting Circles, then keep it centered with the tracking of the Platform. Dave, Shot these last night with my 25-inch f/5 and iPhone 4S. Telescope Accessories. In the 1960s, John Dobson's simple new telescope design revolutionized the hobby of amateur astronomy and brought "sidewalk astronomy" to the masses. Purchase Dobsonian telescopes today and save! Peter designed my telescope so it could see over the walls when they were folded down. Dobsonian Telescopes. More than 30 years of telescope building experience and over 250 truss-tube telescopes built in my workshops in Nottingham. Visual Backs; Telescope Adapter Plates for Solar Filters; Telescope User Guide ... As low as $30.68/Month . Holiday Financing Special - Rates As Low As 0% - 11/25 - 12/1. More than half a century later, Dobsonian telescopes are still a favorite among experienced stargazers for providing the hands-down best value-per-dollar on the telescope market.