TS-Optics 1.25" Wide-field Binoviewer with 30 mm Prisms for Telescopes

The TS wide-field binoviewer allows vignetting-free observations with all 1.25" eyepieces through oversized prisms.

♦ Clear aperture 28 mm / prism diameter 30 mm

♦ T2 connection on the telescope side with retainer nut

♦ Self-centering eyepiece connection for perfect fit of the eyepieces, also with safety groove

♦ Built-in micro focuser for diopter compensation on each side

♦ Short design with only 118.66 mm optical path - can be used with many refractors without compensating the optical path

♦ Robust transport and storage case included in the scope of delivery

 

TS-Optics Wide-field Binoviewer for astronomical Telescopes

The TS wide-field binoviewer is an interesting alternative for lunar, planetary and deep-sky observations. This binoviewer offers an image field that is over 25% larger than of the smaller binoviwers with 22 mm prisms. This allows you to use all high-quality 1.25" eyepieces without vignetting (edge shadowing), such as the TS WA eyepieces or the Baader Hyperion eyepieces. You can view not only moon and planets, but also nebulae, galaxies or star clusters with both eyes.

Many refractors from TS-Optics offer a long working distance (back focus). Due to the short design of the TS wide field binoviewer, you do not need a glass path corrector and thus gain even more field.

We attached great importance to the precise clamping of the 1.25" eyepieces in the binoviewer. Minimal tilting of the eyepieces quickly leads to unsightly double images. This binoviewer completely encompasses the 1.25" barrel and automatically centers it on the optical axis during clamping. This means that eyepieces with a safety groove can also be clamped precisely without tilting or jamming.
 

Practical tip from TS:

The T2 male threads of many adapters are too short. They can be turned into the retaining ring without touching the actual binocular base. This causes the retining ring to rotate further and tilt sideways.

The problem can be solved by using the T2ABA25 spacer, which extends the contact surface of the binoviewer in the direction of the adapter so that the male T2-thread can touch it.

 

Type:	Binoviewer
Prism diameter:	30 mm
Prism material:	BK7
Coating:	fully multicoating
Clear aperture:	28 mm
Optical path:	118.66 mm
Connection telescope side:	internal T2 thread with retainer nut - 6.3 mm thread length
Eyepiece side connection:	2x 1.25" receptacle with compression ring
Interpupillary distance:	adjustable from 54.4 mm to 77 mm
Dimensions:	124x116x47 mm
Weight:	718 grams

In the box:
♦ TS wide-field binoviewer
♦ Case
♦ Dust caps