GSO 406/1829 Dobson Truss

Sixteen inches: the light giant that fits in a station wagon

The GSO 406/1829 Truss Dobson is a 16-inch instrument for the advanced deep-sky observer. The 406 mm mirror collects 3364 times more light than the naked eye: spiral arms in galaxies, filaments in emission nebulae, and globular clusters resolving into their cores. The truss design breaks the giant down into portable parts, so a dark site remains accessible.

Truss construction: large when in use, compact when transported

The truss tubes are disassembled without tools; tube sections and the rocker box fit into a regular car. The built-in fan quickly brings the large mirror to temperature, and the included dust cover protects the optics. With the 30mm 2-inch eyepiece (61x), you can take in wide fields; the 9mm eyepiece captures detail.

For whom yes, for whom no

For the experienced observer who wants to see the maximum under dark skies and is willing to build a large instrument. Not for beginners or balcony observers; start with an 8 or 10-inch Dobsonian and grow later.

What's in the box?

• Optical tube 406/1829 in truss version
• Dobson-rockerbox
• 30 mm (2 inch) and 9 mm (1.25 inch) eyepieces
• 8×50 optical viewfinder
• 2 inch focuser with 1.25 inch adapter
• Mirror fan
• Dust cover

Featured accessories

• A 2-inch moon filter (50%) makes moon observations comfortable with this mirror size.

Unsure about the right size? Our Buyer's guide for beginners and the telescope selection aid help you choose. Also check out all Dobson telescopes in our assortment.