This Celestron 1.25″ erect effigy diagonal uses an Amici prism design. This design allows you to look into the telescope at a 90° angle, at images that are oriented properly, meaning the effigy is upright and rectify from left to right. Comes with a set of duct caps that are not shown in the photo. Has metal barrel with a plastic housing. Diagonal was percentage of an accessory kit that came with a Celestron telescope. Therefore does not come in a box and it does not have Celestron’s name on it. Fits all Celestron, Meade, Orion, Konus, and Bushnell telescopes that have a 1.25″ focuser.
