About this product
Part Number: 2956185
This affordable Barlow from the Baader Classic Eyepiece Set operates at 2.25X when fitted to it's eyepiece holder or 1.3X when attached directly to any of the Baader classic eyepieces 1.25" filter threads. It may also work with other eyepieces with 1.25" filter threads depending on the barrel length and internal clearance.
The Baader Q-Barlow 2.25x achromatic barlow performs surprisingly well with short focal length telescopes including f4-f6 Newtonians. At these short focal lengths this is one of only a small number of barlows able to eliminate the reflections from stray light and the 'hot spot' associated with short-focus barlows.
The inner mechanical design of the Q-Barlow contains a very effective baffle that does not reach into the light cone. This, together with finely polished fully multi-coated glass and blackened lens edges ensures maximum light transmission, definition and contrast over an evenly illuminated field of view.
|Average Rating (3 Reviews): |Baader Q 2.25×/1.3× Barlow
Thursday, 20 August 2020 | Joseph
Top shelf perfermance with my Orthos/Delites on planets usefully the bottom Barlow element screws off to become a1.3x Barlow when screwed onto other eps..Bear in mind it will not work at 1.3x in some eyepieces with an internal barlow which are low down under about a half inch from their barrels preventing the 1.3x from screwing in..but say in my meade 5.5UWA which has an internal barlow it works a treat..so pot luck with some eps its not the fault of this wonderful Barlow just different ep with these built in Barlows can sometimes have very low elements in their
insertion barrels preventing usage at 1.3x..most 1.25 inch eps will work though... at 2.25x its marvelous ..like it better than my less useful vixen 2x that only stays at the one magnification!
Tuesday, 30 June 2020 | Ian
Small and light, so far only used with zoom eyepiece. Only used as a 2.25x barlow. It is easy to use, very sharp image and hardly noticable reduction in brightness when looking at reasonably bright objects
Friday, 27 April 2018 | Riccardo
Three-elements achromatic barlow. Works best with short f.l. eyepiece, very sharp on-axis with my 7mm Ortho.
The 1.3x element magnification is usable only in eyepieces without an internal barlow element (you should have enough space in the barrel).
The barlow will not work with medium f.l. widefield eyepiece (it vignettes).
Overall a good but specialized product.
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