Thread: GSO 2" barlow
View Single Post
  #8  
Old 15-05-2015, 08:11 PM
MattT's Avatar
MattT
Reflecting on Refracting

MattT is offline 		 
Join Date: Jul 2011
Posts: 1,216
Never tried a 17mm but I do have an 18mm ES 82º eyepiece that is great on it's own…will have to try it soon.
By my visual rough reckoning…to me it seems the not so great 2x 2"ED Barlow with a 35mm extension tube turns into a very nice 2.5x Barlow.
Reply With Quote