GSO 680 Deluxe 200/1200 Dobsonian Telescope with Wooden Base

GSO 680 Deluxe 200/1200 Dobsonian Telescope with Wooden Base

DESCRIPTION

The GSO 680 Deluxe Dobsonian 200/1200 is a complete and solid telescope setup, featuring a 200 mm parabolic mirror in BK7 glass and a closed optical tube mounted on a stable wooden base. Its f/6 focal ratio provides a perfect balance between deep sky performance and planetary detail. The 94% enhanced reflective coating delivers sharp, bright images with excellent contrast, while the low secondary obstruction and thin spider vanes preserve image sharpness. Altitude movement friction can be adjusted precisely via dual knurled knobs, while the tube position is adjustable forward or backward to compensate for heavy accessories. A scale on both sides ensures symmetrical tube alignment. The azimuth movement uses roller bearings, offering superior tracking precision compared to traditional Teflon pads. The Crayford focuser with 1:10 fine reduction ensures smooth, backlash-free focusing, even with heavy 2" eyepieces or coma correctors. Supplied accessories include a multicoated 8x50 finder, a 30 mm 2" wide-angle Erfle eyepiece, a 9 mm 1.25" Plössl, and a sealed tube to prevent stray light and moisture ingress. This Dobsonian is a top choice for visual astronomers who value mechanical stability, optical quality, and ease of use.

TECHNICAL SPECIFICATIONS

• Optical type: Newtonian parabolic

• Primary mirror diameter: 200 mm

• Focal length: 1200 mm

• Focal ratio: f/6

• Primary mirror: BK7 glass, 94% reflective coating

• Eyepiece 1: 30 mm Erfle (2", 70° FOV)

• Eyepiece 2: 9 mm Plössl (1.25")

• Focuser: Crayford 2" dual-speed (1:10 reduction)

• Compression rings: 2" and 1.25"

• Finder: 8x50 multicoated

• Tube: Closed metal

• Tube diameter: 230 mm

• Tube length: 1150 mm

• Tube weight: 9.5 kg

• Central obstruction: 25%

• Resolution: 0.58"

• Max FOV: 2.2° with 42 mm Erfle

• Mount type: Deluxe Dobsonian with wooden base

• Altitude adjustment: Dual knurled knobs with adjustable friction

• Balance system: Adjustable tube position with graduated scale

• Azimuth motion: Roller bearings for smoother tracking

• Base height: 60 cm

• Base diameter: 50 cm

• Base weight: 11.2 kg