I agree with John. Dont buy any more of the gso "budget line" , they are about the worst I have seen for abberations at edge of field. I used to own the 26mm myself.
I'll give Dave47tuc a nudge and see if he will relate his experiences comparing his UO barlow to the Televue big barlow belonging to a friend of his.
Maybe when I catch up with him we can compare the UO 2 incher to my Celestron Ultima 1.25" in use with 1.25" eyepieces. It helps to have a planet around to observe though
