Core NASS
Auto Collimation Eyepieces
Autocollimation eyepieces are high-precision optical tools used to align optical systems (telescopes) or measure small angular shifts by projecting an illuminated reticle and observing its reflection. They are critical for final, high-precision adjustment of Newtonian/Dobsonian mirrors. These eyepieces allow for extremely accurate alignment, detecting small angular misalignments of the secondary or primary mirror that other tools might miss.
