I just bought a new WO BinoViewer which includes two 20mm eyepieces and a 1.6 mini barlow.

However, I dont have enough in focus to acheive focus when using my diagonal. O/K without tho`

The other problem I found was that the eyepiece focuser on the left eyepiece comes to focus at a different position than that of the right eyepiece.The left eyepiece has to be turned down to the very bottom of its travel.

Do you think that there is a collimation problem?

I know that my eyes are pretty close to one another prescription wise and I have no problem when using ordinary binoculars.

The view that I got through the binoviewer last night on the moon and Jupiter was very rewarding but I can`t help wondering if the collimation may be slightly out because of the individual focusing difference.

Bob