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Choosing between an expensive high-end bino-viewer or monocular attachment for observing? Now, you can also enjoy the benefits of coated BAK4 bino-viewers with your refractor, Schmidt-Cassegrain or Newtonian telescope. A comprehensive package including:
1.25'' bino-viewer attachment with protective compression rings
2x W.A. (66 deg.) 20mm eyepieces
Barlow lens (1.6X) for easier focusing with any telescope
coating: BaK-4 fully multi-coated
IP distance adjustment: 53mm to 75mm
eyepiece holder: helical focusing, compression rings
size: 120mm x 112mm x 42mm
optical Path: 100mm (4")
weight: 520g (without eyepieces)
For observing with bino-viewers, you always need two eyepieces of equal focal length. The William Optics Binocular set already includes two quality eyepieces of 20mm focal length.
You can always use more eyepieces for different magnifications.
We recommend Omegon LE eyepieces
Our experts are always at your disposal to answer any questions you may have!