Refractor 135mm F/6.7


Due to increased demand of our limited edition 132mm refractor, we have introduced another series, based on our original optical design.
Highly portable optical tube assembly, based on the same focal length as our 140 mm F/6.5, with a slightly slower focal ratio due to its smaller aperture.
We recommended it for visual astronomy and photographic use when used in pair with our dedicated Field Corrector.


Core glass used – S-FPL53;
Clear aperture – 135 mm;
Focal length – 915 mm;
Focal ratio – 6.7;
Only a limited number is available in single OTA or bino-telescope configuration.

Optical Quality


Minimum length –  780 mm;
Maximum length – 990 mm;
Back-focus – 180 mm;
Tube diameter – 145 mm;
Dew shield diameter – 164 mm;
Weight – 10 kg, including rings.

Pricing (2019):

6519 Euro, includes VAT 23%. Net export price – 5300 Euro (non EU countries);
3.5” Feather Touch focuser (includes finder shoe);

Accessories included in the price: CNC rings, flight case.

  • prices of USA imported focusers are subject to change depending on EUR/USD exchange rate;
  • prices of OTAs are subject to change without notice.

Optional Accessories:

  • Field Corrector = 650 Euro, includes VAT 23%. Net export price – 528 Euro (non EU countries); Corrected Field = 55 mm;
  • Dovetail, Losmandy Type, 350 mm length, lightweight = 140 Euro, including VAT 23%; Net Price = 114 Euro;
  • Handle, 300mm length = 85 Euro, including VAT 23%; Net Price = 69 Euro.

Number of units manufactured/ordered: 6
Units still available for ordering: 9

Average lead time: please inquire.

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