The Celestron Stereo Binocular Viewer allows you to adapt two eyepieces to your telescope and view with both eyes simultaneously. In addition to eliminating eye fatigue associated with viewing through one eye for a prolonged period of time, this 1.25-inch bino viewer also provides a three-dimensional effect when you're observing many celestial objects. In addition, it will improve contrast on deep-sky objects and solar system objects. The Stereo Binocular Viewer is designed to work with Schmidt-Cassegrain telescopes (SCT) and many refracting telescopes.

The Stereo Binocular Viewer requires you use two eyepieces of equal focal lengths and optical design. Your telescope will come with one or more eyepieces - you will need to purchase a matching eyepiece for use with the binoviewer.

High-quality FMC BAK-4 prisms to reduce light loss Quality control inspected for collimation and performance.

• Fully Multi-Coated BAK-4 prisms
• Foam-lined aluminum storage case
• Eyepiece diopter scales for sharp focus