Celestron (Baader Planetarium) Binoviewer for sale. 2" aperture. Excellent condition and gives excellent images. A refractor is preferred due to the 60 degree angle of the binoviewer (makes observing the zenith with a SCT neck wringing). I have moved up to a Denkmeyer for that reason and thus this is for sale. $300 includes shipping. PayPal preferred, no surcharge.