This 2.25x barlow lens is an anastigmatic flatfield triplet optical design that has been designed specifically for use with the Baader Hyperion ClickStop MKIII Zoom eyepiece. With the zoom lens, it will result in a zoom lens with a focal length range from 3.5mm – 10.5mm.
The barlow can be attached to any 1.25″ eyepiece with a 1.25″ filter thread using the supplied 1.25″ adaptor. The barlow also includes a T-2 photo adaptor for imaging applications.
|INNER CONNECTION (LENS SIDED)||Thread: M28.5|
|OUTER CONNECTION (LENS SIDED)||Barrel, 1¼”|
|INNER CONNECTION (EYEPIECE/-CAMERA-SIDED)||Thread, M28,5|
|OUTER CONNECTION (EYEPIECE/-CAMERA-SIDED)||Thread, M28,5, T-2 (M42 x 0,75)|
|AR-COATING||Phantom Coating® Group|
|USAGE||From the normal focal length range of 8 – 24 mm of the ClickStop zoom, a focal length range of 3.5 to 10.5 mm is achieved by adapting the Barlow lens|
|BARREL SIZE (IN)||1¼”|