Bino-refractors

Availability: manufactured on request; Type: refractor

These are our first products designed for using our eyes in a natural way. Built around two single optical tube assemblies, shortened to accommodate the 3-inch fusion image system, made in Japan (Matsumoto – EMS).
By using the maximum practical aperture for the focusers and EMS system, the bino will allow using 2″ eyepieces without any vignetting of the light cone.
It has the light gathering power of a 190-mm unobstructed objective while the use of our eyes in a natural way increases perceived resolution. Highly recommended for visual astronomy.

Main features:
* 3.2" or 3.5" rack and pinion type focuser from Starlight Instruments;
* dew shield with rotate & lock feature;
* portable, medium size refractor bino-telescope;
* EMS - UXL fusion image system;
* Oil-spaced design for best possible light transmission & highest contrast.

Specifications & technical data:
Core glass used – S-FPL53 or S-FPL55;
BR - 135mm: Clear aperture – 135 mm; Focal length – 910 mm; Focal ratio – F/6.7;
Light gathering capability equivalence – 190 mm aperture;
BR - 160mm: Clear aperture – 160 mm; Focal length – 1050 mm; Focal ratio – F/6.5;
Light gathering capability equivalence – 216 mm aperture;
Only a limited number of pieces will be available.
Back-focus distance with EMS = ~55 mm;
Back-focus distance without EMS = ~250 mm;
BR-135: weight - 21 kg;
BR-160: weight - 25 kg;
Optical Quality (please click for our optical manufacturing specifications)

Pricing (2018):
BR - 135mm
13 990 Euro, includes VAT 23%. Net export price – 11374 Euro (non EU countries);
FTF3235/3.2″ Starlight focuser, 89 mm travel, dual-speed; with finder bracket and dust cap;

BR - 160mm
24 750 Euro, includes VAT 23%. Net export price – 20122 Euro (non EU countries);
FTF3545/3.5″ Starlight focuser, 114mm travel, dual-speed; with finder bracket and dust cap;

Included items:
CNC hinged ring type cradle, D-type dovetail, handle.

Visual accessories:
A pair of good quality eyepieces, to be able to extract the most of your new bino-refractor telescope.

Number of BR-135mm units available for ordering: 1
Availability: 3 months from order
Number of BR-160mm units available for ordering: only by request
Availability: please inquire 
* Prices subject to change without notice.
* featured BT-160mm in Carbon Fiber shows other fusion image system; image is for reference only; it does not represent the product described above.

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