A Dobsonian telescope on display at Stellafane in the early 1980s A Dobsonian telescope is an altazimuth-mounted Newtonian telescope design popularized by John Dobson in 1965 and credited with vastly increasing the size of telescopes available to amateur astronomers. Your Apertura™ Dobsonian Telescope comes standard with two eyepieces: a 2" diameter wide field, low-power eyepiece with a 30mm focal length and a 1.25" diameter high-power eyepiece with a 9mm focal length. To get the best results from your telescope, always start with your widest field (lowest power) eyepiece, then work Truss tube dobsonian telescope plans for beginners printable pdf download Includes: Two-Speed 2-inch Rack & Pinion Focuser with 1.25-inch Adapter; LED Red Dot Finder, Collimation Assist Tool; Flexible Light Weight Light Baffle; Two Primary Mirror Fans with Battery Pack; Instructions and receive updates about sales, new products, and astronomy. A high-quality Dobsonian telescope with high-quality optics and a 300mm 12 inch aperture. GSO Dobsonians feature the highest quality mirrors and impress due to their reasonable prices. Download Instruction Manual of 304/1520 Dobsonian Reflector Telescope in .PDF format. The following items are FREE with the telescope listed above. [ Subject Completely assembled, this 12½- inch telescope weighs a meager 76 pounds. The heaviest component is the mirror box with the mirror installed, and it is an easily manageable 45 pounds. The Product Manuals Zhumell Z8 Dobsonian Telescope Download Manual (.pdf) Zhumell Z10 Dobsonian Telescope Download Manual (.pdf) Zhumell Z12 Dobsonian Telescope Download Manual (.pdf) Zhumell Z100 Portable Altazimuth Telescope Download Manual (.pdf) Zhumell Z114 Portable Altazimuth Telescope Download Manual (.pdf) Zhumell Meade 10" f/10 LX200 ACF Telescope without Tripod. Features a 10" aperture, 2500mm focal length, and f/10 focal ratio with Dual-Fork Mounting. With UHTC and a resolving power of 0.570 arc seconds. Includes a 26mm eyepiece (96x), viewfinder (8x50 optical with crosshair), and diagonal mirror. $4,399.99. IQCrew Tabletop Dobsonian Telescope with 15X to 100X Magnification. New New New. $69.99. Free shipping Free shipping Free shipping. 56 sold 56 sold 56 sold. SVBONY SV181 1.25" Rack Pinion Newtonian Reflector Focuser Fully Metal Telescope. New New New. $45.99. the dobsonian telescope a practical manual for building large aperture telescopes are a good way to achieve details about operating certainproducts. Many products that you buy can be obtained using instruction manuals. These user guides are clearlybuilt to give step-by-step information about how you ought to go ahead in operating certain equipments. 6-inch Telescope - ₹35,000/- (including GST) 8-inch Telescope ₹46,000/- (Including GST) 10-inch Telescope ₹ 57,800/- (Including GST) To start the project- Send an email to aperturetelescopes@gmail.com or send a Whatsapp message to 9810274724 Surya made her 8-inch Dobsonian Telescope at our facility in 8 visits Surya - The Telescope Maker Simply, it is a frame that is holding the tube, and the altitude bearings are mounted on it. First, mark your drilling holes. Since the board is 19 mm thick, draw 19 strips on the wider side of the board : Mark 3 drilling holes per strip, 30 mm from the edges, and one in the middle. Use a 4 mm bit for the holes. The Dobsonian Telescope: A Practical Manual for Building Large Aperture Telescopes by David Kriege, Richard Berry