Baader Q-Barlow 2.25x / 1.3x

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Baader Q-Barlow 2.25x / 1.3x

# 2956185

€ 49.00 Price excl. German VAT tax (19%): € 41.18

In Stock  


  • Baader Q-Barlow lense 2.25x, 1¼" barrel
  • dual factor lens assy (1.3x/ 2.25x)
  • Modern High-Transmission Multi-Coating all air-glass surfaces delivers a remarkably brilliant image with extremely low internal reflections
  • Extends the possible focal lengths of the Q-Turret eyepiece set

Product Questions

Dear Baader I have the q-barlow but the screwed into the eyepiece directly for 1.3x magnification is possible with any brand\kind of eyepiece or just with your classic orthos?
Question by: Sirio on Jul 17, 2018 11:09:00 AM | 1 Answer(s)


 Baader Planetarium Q-Barlow 2,25x / 1,3x

Without the housing, the Barlow lens can be screwed either into the eyepiece revolver (for 2.25x magnification) or directly into an eyepiece (for 1.3x magnification)
The Q-Barlow lens can be unscrewed from the eyepiece adapter

This high-quality 2.25x Barlow made of exotic glasses provides the rare extension factor of 2.25x. So, there are no duplicate focal lengths when used with the eyepieces of the Q-Turret Set, and you can achieve higher magnification than with standard 2x barlow lenses if you do planetary photography with a web or video camera, and you can make better use of the camera's resolution. Read here the detailed report by Dipl.-Ing W. Paech: Hints + tricks for high-resolution lunar and planetary photography with a video module - a short "workflow" for SC telescopes with Baader accessories.

The Barlow can either be screwed into the Q-Turret eyepiece turret or combined via the special, included adapter with all 1.25 "eyepieces. In this case, it acts as a 2.25x Barlow. With the Q-turret revolver and the Classic Eyepieces, this results in the following focal lengths: 2.7 mm, 4.5 mm, 8 mm and 14 mm

Alternatively, it can also be screwed directly into an eyepiece and then increases the telescope focal length by a factor of 1.3. The Barlow element has an M28.5 male thread (corresponding to the filter thread of 1¼ "eyepieces), the housing has got a M28.5- female thread.

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Additional Information

Manufacturer Baader Planetarium
SKU (#) 2956185
Weight (kg) 0.067
Inner Connection (lens sided) Thread, M28,5
Outer Connection (lens sided) Barrel, 1¼"
Outer Connection (eyepiece/-camera-sided) Clamp, 1¼"
Clamping System Screw clamps
Magnification (x) 2,25x / 1,3x
AR-Coating High transmission multi-coated (HT-MC)
Adaptable to Q-Turret Okularrevolver und Classic Ortho/Plössl Okulare, 1¼ Okulare
Usage Erweitert die möglichen Brennweiten des Q-Turret Okularsatzes.
Barrel Size (in) 1¼"
Optical Design Barlow

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