Long type Newtonian collimation eyepiece with central cross hairs and rubber eyecup
This is a great no-fuss collimation tool for all Newtonian owners.
All metal construction, it features accurately centred wire cross hairs to assist you in achieving better alignment of the telescopes primary and secondary mirrors.
Features highly polished metal, side reflecting cheshire which is extremely useful for achieving best illumination of internal centring markers in low light situations.
Fit's in to the focuser in place of a conventional eyepiece.