Collimation aligns a telescope's parts for the sharpest images. Most telescopes need collimation at some point; reflectors need it often. Tools like laser collimators or Chashires help align the ...

What exactly are Dobsonian telescopes? We explain their design and why they have such widespread popularity among astronomers. When you purchase through links on our site, we may earn an affiliate ...

A great value all-rounder with the added convenience of alignment by smartphone, this large yet affordable Dobsonian telescope offers sharp and immersive views of galaxies, nebulae but also planets ...