#Dobsonian

The complete guide to telescope upgrades and accessories in 2026. Eyepieces, Dobsonians, binoculars, collimation tools — what to add first, what makes a real difference, and what to skip.

How to collimate a Newtonian or Dobsonian reflector telescope step by step. What collimation is, why it matters, which tools work, and how long it actually takes. No jargon.

The best Dobsonian telescopes in 2026 ranked by aperture, build quality and value. Sky-Watcher Heritage 130P to Skyliner 250PX — what each one shows and who should buy which.