The Stereo Binocular Viewer greatly improves contrast and definition on lunar, planetary and solar subject matter as well as on deep sky objects. Using both eyes to view through a telescope is a new, relaxed and thrilling way to enjoy your observing time. When both eyes are open, your eye muscles are relaxed and you do not suffer from eyestrain.

To demonstrate just one of the effects you will see, compare an eye chart when examining your eyes. Cover one eye and read the chart to the smallest line you can see clearly. Now remove the cover over the eye, relax for a few seconds and then examine the chart with both eyes open — you can see more detail than with one eye. In addition, the brain corrects for small defects (aberrations) of the eyes when given the information from both eyes.

Beyond a 50 foot distance, pupils are nearly parallel and prevent real stereoscopic viewing. However, since our brain "knows" (due to near distance experience), we identify distant objects as three dimensional. The more experienced the observer, the more this effect will be apparent.

The optics are precision aligned and MgF2 coated. Interpupillary adjustment reaches from 53mm to 76mm. The optical head has a 60° viewing angle for a comfortable viewing position.

The bino viewer is fitted with a T-thread on the telescope side. Use a #93625 T-adaptor to fit it in place of a 1.25" eyepiece, or a #93633-A T-adaptor to connect it to the rear cell of an SCT. You can find these in the catalogue under Celestron:Accessories:Camera Adaptors. Utilizes 1¼" eyepieces (not included). Must use two eyepieces of equal focal length and design type. Made in Germany.
Price: £455.00 (Including VAT at 17.5%)