William Optics Binoviewers with accessories: two eyes see more than one
With the William Optics binoviewer, you view through your telescope with both eyes simultaneously. That is more than comfort: your brain combines two images into a calmer, more detailed whole with a surprising sense of depth. The difference is especially significant on the moon and planets, and long sessions are considerably less tiring.
The BAK4 prisms and fully multi-coated optics keep both light paths bright and sharp; the compression rings clamp the eyepieces scratch-free and precisely.





Supplied complete
The set includes two 20 mm eyepieces with a 66-degree field of view and a 1.6x Barlow lens. That Barlow is more than a magnifier: it extends the light path so that the binoviewer comes into focus on most refractors and catadioptrics.

Which telescopes
Suitable for refractors, Schmidt-Cassegrains and, with the included Barlow, many Newtonians. The binoviewer requires extra focus travel; the 2x binoviewer Barlow from the range provides an extra route if the range is tight.
Included
- Binoviewer 1.25 inch with compression rings
- 2x 20 mm eyepiece (66 degrees)
- 1.6x Barlow lens
- Storage box
Featured accessories
The standalone 2x Barlow for binoviewers provides extra magnification and extra focus travel on tight systems.
For whom yes and for whom no
- ✓ Moon and planet observers seeking comfort and detail
- ✓ Who want to watch long sessions without eye strain
- ✗ Whoever mainly observes faint deep-sky objects: a light path shared between two eyes costs brightness
Specifications
| Type | Binoviewer 1.25 inch |
| Prisma's | BAK4, fully multi-coated |
| Ocular clamp | Compression Rings |
| Included | 2x 20 mm eyepiece (66 degrees), 1.6x Barlow, storage box |
You can find more accessories for this merk at the William Optics merk Page.





Reviews
There are no reviews yet.