Open Box ZWO OAG-L Off-Axis Guider 12mm Prism William Optics Guiding scope gives sharpest image

Guiding scope gives sharpest image and straight through viewing with an inverted image

elegant design

With its 190mm focal length

Internal tube treatment:

Open Box ZWO OAG-L Off-Axis Guider 12mm Prism William Optics Guiding scope gives sharpest imageCondition: This is a an Open Box return of a ZWO OAG L. It is in perfect, unused condition the previous owner opened the box, looked at it, and realized it was not for him. You save TWENTY BUCKS off of one that hasn't been opened! Description: OAG L has a large prism size of 12*12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in guiding. It is easy to use, and suitable for users who are interested in long focal