The Celestron Binocular Viewer enables you to enjoy celestial views with more contrast and improved detail using both eyes, identical pairs of eyepieces are of course required.
The Celestron Binocular Viewer is well-made, with a rubberized coating to make it easy to grip, even with gloves on. The 22 mm BaK-4 fully multi-coated prisms provide increased light transmission with no vignetting or light cut-off. Each eyepiece holder can be individually focused, and diopter adjustment readings are well marked. The 1.25 insert barrel is threaded for filters, allowing you to use one filter instead of threading them on each individual eyepiece.
The Celestron Binocular Viewer weighs about 18 ounces and uses approximately 3.5 inches of back focus. This is sufficient for most catadioptric telescopes (Schmidt-Cassegrain, Maksutov-Cassegrain, etc.) as well as a good number of refractor-style telescopes. Newtonians and some spotting scopes have the least amount of back focus. Using a binoviewer on these designs may result in the inability to focus to infinity. Remember, binocular viewers require the use of two matched 1.25 eyepieces, which are sold separately.
The Binocular Viewer is designed to work with Schmidt-Cassegrain telescopes (SCT), Maksutov and many refracting telescopes. Not suitable for Newtonian reflectors.
Features high quality FMC BAK-4 prisms reduce light loss. Each unit is quality control inspected for collimation and performance.
The Stereo Binocular Viewer requires you use two 1.25" eyepieces of equal focal lengths and optical design.
Aperture 22 mm
IPD Max 75 mm (2.95 in)
IPD Min 54 mm (2.13 in)
Optical Coatings Fully Multi-Coated
Weight (oz) 18 oz (510 g)
Product Dimensions 4.75" x 4.75" x 1.75"
Storage Case Weight (oz) 11.6 oz (329 g)
Storage Case Dimensions 6" x 6" x 2.75"
Celestron Binoviewers Brilliant service - next day delivery. Binoviewers appear to be very well made, comfortable to use and easy to set up. The aluminium case is a bonus. We haven't used them outside yet, too much cloud but imagine my wife will find them ideal as she cannot close one eye when observing the moon. (17/11/2017) Tony Norris - Horncastle, Lincolnshire
Please order by December 18th at the latest for xmas - we close on Friday 20th December and re-open on Thursday 2nd January 2020. Our delivery charge for most of the UK is £2.95. All orders are shipped promptly, lower value items are sent Royal Mail 1st class and higher value or larger goods are shipped via reputable courier. All goods are shipped fully insured with FEDEX, UPS, DPD, DHL and Royal Mail, we do not use budget courier services, we can only ship to UK mainland addresses and are not able to ship to forwarding agents or PO boxes.
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We ship each business day, orders received before lunch are normally shipped that business day. We also direct ship from our UK suppliers, this means we have access to thousands of products that can ship fast to our customers.
Deliveries to UK mainland addresses are all shipped with fully insured premium services for £2.95, *some exceptions apply including many AB, FK, HS, IV, KA, KW, PA, PH, ZE postcodes. We will quote delivery charges to these areas where applicable prior to shipping (this does not normally affect lower value items shipped by Royal Mail).
You must inform us within one working day if the goods are lost or damaged in transit so that we can make a prompt claim against the delivery company and correct the problem. Please ensure all address details are accurate, we cannot be responsible for failed deliveries or losses arising from incorrect delivery addresses.
You agree that proof of delivery supplied by our delivery company is sufficient evidence to establish that goods have been received.
If your product is sent by Courier they will attempt delivery twice and a signature will be required. If they are unable to deliver because you are not available and after 5 days you have not contacted them to re-arrange. the goods will be returned to us and the return delivery costs may be charged to you