The JMI Telescopes 3" to 2" Reducing Adapter converts a 3" inner barrel diameter optical path to accept 2" outer diameter diagonals, prisms, eyepieces, and other visual and imaging accessories. Unlike less expensive solutions, it is equipped with a brass clamping ring to evenly tighten upon the 2" accessory without leaving any marks. Made in the USA.
Pushes in to 3" inner diameter barrels
Accepts 2" eyepieces, diagonals, and accessories
Made in the USA