The Equinox Issue 1

Baader 1.25" 2.25x Q Barlow with HT Multicoatings # BQB 2956185

Our Price: $69.00
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In Stock (9 Available)
Ships by Next Business Day
Our Product ID: OBAR-BP-BQB
Manufacturer SKU: 2956185
Item Can Ship: Worldwide
Baader 1.25" 2.25x Q Barlow with HT Multicoatings # BQB 2956185

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Quick Overview

  • Q-Barlow 2.25x matched to Baader Classic Eyepieces to give evenly spaced magnifications for lunar and planetary viewing; also works with Baader Q-turret
  • Lens can be removed from extension tube to give 1.3x magnification of each eyepiece for further flexibility
  • High transmittance and contrast for a distortion-free image

Product Details

The Classic Q-Barlow has been optically matched to the new Baader Classic Eyepieces, and its 2.25x magnification gives a well spaced set of focal lengths. Its removable lens cell can also be unthreaded from the 1.25" barrel and directly threaded onto any 1.25" eyepiece with standard filter threads to give 1.3x, further filling in the choice of focal lengths. Alternatively, it can be directly threaded onto the 1.25" barrel of the Q-Turret (sold separately) to give 2.25x.

  • Baader 1.25" Q Barlow for visual and photographic use # BQB 2956185
  • Versatile dual magnification Barlow (1.3x or 2.25x)
  • 2.25x magnification factor if used as is with included extension tube
  • Barlow lens element can be removed and screwed directly on to 1.25" filter threads on many eyepieces to provide approximately 1.3x magnification (see important note below)
  • Very high transmittance, high contrast, and thus an extremely clear, distortion-free image
  • Attach the barlow element directly to 1.25" prime focus photography adapters (sold separately) for barlowed imaging of the Moon and planets
  • Not threaded to accept additional 1.25" filters

Important Note: The barlow lens cell in this item is very long (17mm) - see photos 3 and 4 above. In order to attach this lens cell to other 1.25" eyepieces/adapters, your eyepiece must have at least 12mm of inside clearance. Many shorter eyepieces with a safety recess groove on the barrel will not have so much clearance. In these cases, you will not be able to insert the Baader barlow lens cell deep enough to enable it to catch the filter threads on the eyepiece.

Manufacturer Baader Planetarium
Size Format 1.25 inch
Magnification Factor 2.25x
Number of Lens Elements
Lens Coatings HT multicoated
Total Length 2.4 inches / 61 mm
Length of Nosepiece 1.1 inches / 28 mm
Outside Length of Upper Body 1.29 inches / 32.7 mm
Insertion Depth 1.1 inches / 28 mm
Max Diameter Excluding Thumbscrew 2.12 inches / 53.9 mm
Clear Aperture 0.96 inches / 24.4 mm
Weight 2 oz / 57 g
Barlow Lens Cell Removable Yes
Filter Threads at Bottom of Barlow Cell No
Filter Threads Between Barlow Cell and Tube Yes - 1.25" (M28.5x0.6) Filter Threads
Barrel Type Smooth-sided
Compatible Agena Bolt Case (with Screw Removed) 42x80
Compatible Bolt Case (with Screw Attached) 52x80
Number of Thumbscews 1
Thumbscrew Thread Specification Coming soon
End Caps (Subject to change without notice) 2
Compression Band/Ring in Eyepiece Holder No
Country of Manufacture Not disclosed by manufacturer

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