Collimation Eyepiece 1.25in (94182)

Finally got my newtonian collimated perfectly thanks to this eyepiece; the crosshairs and bright ring make it so much easier to see what's off. Took me maybe ten minutes my first time.

I was tired of guessing at collimation, but this eyepiece’s bright crosshairs and reflective ring made it dead simple. It locks into the focuser snugly and the 1.25-inch barrel fits my scope perfectly.

The crosshairs and central ring make it super easy to dial in the secondary mirror alignment on my 8-inch Dob. Took maybe 10 minutes to get sharp stars across the whole field after struggling for weeks without one.