top of page

Buy GSO (Guan Sheng Optical Telescopes) 12 inch telescopes from India's largest telescope shop. You can buy this telescope online at 


The GSO Dobsonian line is particular model serves a very clear purpose, to offer a large aperture and an excellent image quality at reasonable cost.

Set-up is as easy as you can imagine very simple assembly with the rocker box and put it on the ground, insert the telescope tube and put the springs in position and you're ready to go to navigates through the night sky by simply moving the tube up or down, or side to side, by hand.

All GSO dobsonian use optical quality BK7 glass, cooling fans built into the rear cell to decrease cooling times, also all dobs use a roller bearing on the azimuth surface providing dozens of support points for smooth swivel motion. The deluxe model comes with 2" Micro 10:1 Crayford style focuser and 1.25" adapter.

  • Technical Specifications

    Tube material: Steel
    Color: white
    Aperture: 300 mm
    Focal ratio: f/5
    Secondary diameter: 75 mm
    Obstruction: 25 %
    Focal length: 1500 mm
    Mirror material: BK7
    Coating: 94 % enhanced coting
    Resolution: 0.38"
    Limit value: 15.4 mag
    Max. useful visual power: 600 x
    Focuser: 2" Crayford
    Connection to eyepiece: 2" , 1 1/4" with adapter
    Viewfinder: 8 x 50 with holder
    Tube diameter: 365 mm
    Tube weight: 43 lb
    Included accessories: Azimuth roller bearing
    Eyepieces: 30 mm 2" Erfle, 9 mm 1 1/4" Super Plössl
    Eyepiece adapter: 1 1/4"
    Type of mount: Dobsonian mount
    Hight / Diameter of Rockerbox: 64 cm / 63.5 cm
    Weight of Rockerbox: 29.7 lb

  • In The Box

    • GSO Dobsonian Telescope
    • Fan behind the main mirror
    • 8x50 Finder with achromatic optic
    • 2" Crayford focuser - 1:10 micro - reduction from 2" to 1.25"
    • 30mm 2" Wide Angle ERFLE with 70° field for good overfiew
    • 9mm Super Plössl - multicoated
    • 2" 35mm extension tube
    • eyepiece and accessory tray for eyepieces and filters
    • Collimation manual

GSO 12 inch DOB Telescope (White)

SKU: GSO 12 inch DOB Telescope (White)

    Related Products