These are a Fantastic Barlow (Beats the Meade Shorty and GSO 3 Element “ED” and many others) at a very cheap price – but it doesn’t like tapered barrels and is a little fussy. If it doesn’t fit, send it back.
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. The factor 1.3x is achieved when the Q-Barlow is completely screwed into the 24mm long push-in sleeve of an eyepiece whose field diaphragm lies 2mm inside the push-in sleeve. This corresponds to the design of our Classic Plössl/Ortho eyepieces; with other eyepiece designs, the magnification factor may vary slightly.
Attention: When fully screwed in, the Barlow element protrudes 13mm into the 1.25″ plug-in sleeve. On eyepieces where lens elements in the 1.25″ sleeve do not allow the Q-Barlow element to be screwed in, it can only be used in the 1.25″ adapter with factor 2.25x.
If necessary, you can use it on these eyepieces with the 18.5mm long 1¼” extension sleeve with 1¼” filter thread on both sides: Baader 1¼” – 31.8mm nosepiece extension with 1¼” filter thread on both sides (T-2 part #05) (#1905130) These bits are available as backorders – just call us up.
Download and read the Wilcox Report on the Q-Turret kit (We split this kit to make it easier to purchase as you want it)
We have NEVER had these come back – give it a try!
|Dimensions||9 × 7 × 7 cm|