TS-Optics Astro Binoviewer for telescopes, with compression ring

The binoviewer from TS was especially designed for the use with telescopes and offers comfortable viewing with both eyes.

♦ Perfect on-axis clamping of the eyepieces by compression rings - no tilting possible, thus no double images

♦ Diopter fine adjustment and micro focusing via knurled wheel - not necessary for pulling the eyepieces back

♦ Generously dimensioned prisms with 23 mm clear aperture without lateral shadings for a good illumination

♦ No reflexes or multiple images through full multi-coating and neat internal blackening

♦ Very well adjusted prisms - no double images!

♦ Only 100 mm optical length - together with the matching glass path corrector, using the binoviewer with Newtonians is possible

♦ Only 525 grams - well suitable for more simple focusers, too.


 

Binoviewer from TS Optics for telescopes for comfortable oberving with both eyes

Lead-managed by TS Optics, this high-quality binoviewer was developed especially for astronomical telescopes. The TS binoviewer is not a converted microscopic accessory, but a quality construction designed for practical use with telescopes.
 

The advantages of binocular vision:

Simply close one eye and compare the image. You will notice less details and tire faster. For this reason, landscape viewing usually is more relaxed with binoculars than with a spotting scope. Astronomical viewing with the TS binoviewer also has advantages:

♦ Viewing is tireless and more relaxed.
♦ Fine details, especially at moon and planets, are better perceived than with only one eye. This happens by superimposing the image information from both eyes in the brain.
♦ Seeing is better compensated, also an achievment of the brain.
♦ There is an impression of higher magnification and a more contrasty image.
♦ Nebulae, clusters and galaxies can also be observed well. Despite the light is distributed to two outlets, it looks only minimal dimmer, but the more vivid. A globular cluster or a bright nebula appears more structured and even offers a slight three-simensional effect.
 

The features of the TS binoviewer:

Viewer is not the same as viewer, as many amateur astronomers had to realize. With the TS binoviewer, there are no compromises.

♦ Eyepieces are clamped exactly on the optical axis b a compression ring. The brass ring encloses the eyepiece and centers it at the same time. Therefore tilting becomes impossible, double images are avoided.

♦ Similar to good binoculars, diopter differences are compensated by a micro focuser. You can put both eyepieces into the receptacles as far as they will go. Simpler binoviewers do not offer this, you have to pull out one eyepiece a bit. That is not very precise.

♦ With only 100 mm, the TS binoviewer has a short optical length. With a suitable glass path corrector, it can be completely compensated, making also possible the use with Newtonian telescopes. The corrector is simply screwed into the filter thread of the binoviewer´s telescope side 1.25" barrel.

♦ The prisms of the binoviewer are over-dimensioned and, of course, multi-coated. If you look into the viewer without eyepieces, you will see a circular opening without lateral shading. Annoying reflexes or multiple imagages are reliably avoided. You can concentrate exclusively on the object.
♦ The binoviewer is delivered with a solid matal case, all connections are covered by protective caps. Thus, the binoviewer will look like new even after many years.
 

Easy to use with almost all telescopes:

Generally, the TS binoviewer can be used with any telescope with 1.25" or 2" focuser.

♦ All telescopes with internal focusing (Schmidt-Cassegrain, Maksutov, etc.) allows for direct adaption of the binoviewer. The adjustment range is big enough.

♦ Refractor telescopes with 2" focusers also have a generous working distance from focuser to image plane. If you use a 1.25" diagonal, usually the TSGWK16 - 1,6x glass path corrector will be sufficient. Also Newtonian telescopes designed for astrophotography offer a suitable distance. The TSGWK16 will suffice.

♦ Newtonian telescopes with shorter distance or refractor telescopes with 2" star diagonal - wherever there is not too much space for focusing - need the stronger glass path corrector TSGWK26.


 

Connection telescope side:	1.25" barrel with filter thread
Connection eyepiece side:	1.25" receptacle with compression ring
Diopter compensation:	yes, via micro focuser
Optical length:	100mm
Clear aperture:	23 mm without clipping by the prisms
Clear aperture eyepiece side:	18 mm
Coating:	fully multi-coated
Weight:	only 525 grams
Interpupillary distance:	adjustable from 54 though 74 mm

In the box:
♦ Binviewer with compression ring
♦ Dust caps for eyepice receptacles and telescope connection
♦ Solid Aluminium Case