Opticstar Advanced 9mm Wireless Illuminated Adjustable Reticule Plossl Eyepiece

The Opticstar Advanced 9mm Wireless Illuminated Adjustable Reticule Eyepiece is ideal for use for guiding and aligning the telescope mount via the 'drifting' method that ensures accurate alignment. The Plossl eyepiece includes a 4-element, multi-coated optical system, dioptre adjustment and double cross-line/bull's-eye type reticule.

The four thumb screws on the eyepiece allow you to relocate the cross-hair in the field of view thus enabling you to drift-align on other stars within the field of view without the need to re-align the mount itself when selecting another star, something that is not desirable.

In addition two of the thumbscrews are spring loaded to facilitate quick and accurate cross-hair adjustment.