William Optics Cat Mounting Ring - M-MR50RC-BL Astrographs These units attach and lock

These units attach and lock onto the tops of over 20 long eye-relief Tele Vue eyepieces to achieve the sharpest full-field viewing possible

With the Celestron Nature DX Binocular series

Fold down rubber eyeguard for comfortable viewing as well as blocking stray light

with the addition of the secondary mounting saddle (included with the mount)

Universal (Vixen-style) dovetail bar

William Optics Cat Mounting Ring - M-MR50RC-BL Astrographs These units attach and lockWilliam Optics Cat Mounting Ring William Optics Cat Mounting Ring Allows mounting the WO Space Cat Clamshell Type Mounting Ring Suitable to mate with the (Optional) Cat Saddle and Handle This is the William Optics Cat Mounting Ring. This WO Mounting Ring uses the standard clamshell type open close attachment method to secure or release your telescope instrument. The Cat Mounting Ring from William Optics is provided in black anodized aluminum