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Build your own binoscope!

Linear - platform for bino-scopes BB - 130

To reachable a "bino-scope" you have two possibilities: you adjust the interocular distance with optical elements or you change the distance of the both telescope tubes. If you will get the maximum optical power, the best way is to use the EMS elements form Matsumoto (deliverable from Astro-Hutech) and adjustable telescope tubes.

The core of the base unit

The bino-platform BB-130 is made for smaller refractors about 3 - 4" and offer adjustable distance of the both tubes between 115 mm to 145 mm (4,5" to 5,7"). This solution will works best with smaller EMS up to 2" diameter and can adjust to find parallel position of the both tubes. To make the mechanical structure as rigid as possible, we use high precision ball cage linear-bearing's from Agathon to realize best linear adjustability.

the bino-platform BB-130 with optional tube mounting rings

An important point is to keep both tubes parallel otherwise you get a double image. The adjustability of the distance of both tubes (interocular distance) is with a easy to use hand-wheel at side. The platform works perfect with Borg 71FL, 77ED, 89Ed or 90FL tubes or similar products of coarse.

the bino-platform BB-130 with optional "L"-shape holder for Alt-Az mounts and carrying handle

The platform permitted easy and stable adjustment of the both tubes and can use on standard photographic tripods as well as at Alt/Az mounts or very unique at german equatorial mounts (with EQ holder).

with the optional adjustable EQ holder for equtorial mounts for guidet mode!

The multipurpose possibilities make this platform very unique and offer you a mile-stone in visual observing

optional carrying handle

L-holder for Alt/Az mounts


  • adjustable distance for tubes between about 4,5" to 5,7".
  • adjustable tube bases to find perfect parallelism
  • high precision ball cage linear bearing's form Agathon
  • both small and wide tube mounting rings are possible
  • elaborate lightweight design made with quality aluminium, black anodized
  • optional holder for equatorial mounts
  • optional holder for Al/Az mounts
  • optional carrying handle for easy handling

Borg 89ED bino-scope on a parallactic mount

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Letzte Änderung: 17. November 2015, Webmaster