A chance discovery about binoviewers....

[Helen]

A year or so ago I bought a pair of WO binoviewers.  My initial testing of them was very unsuccessful.  I couldn't seem to get the right position of the eyepieces to get my brain to see the same thing in both.  I also had problems getting even one to focus in my refractors even with the provided barlow (another design whinge.... why do they provide an attachment that seeks to cure a lack of in-focus in a long tube that actually adds length ) .  I really liked the idea of using 2 eyes though so have kept the binoviewers just in case.

Well I'm glad I did.  I made some progress using the Mak as there's plenty of focus travel.  But the real revelation came by accident when playing with the Megrez90 refractor a couple of nights ago.  The 2inch diagonal had too long a focus path so I switched that out for a 1.25.  In doing this I inadvertently put the binoviewers in upside down (it was dark!!).  I then found that it was MUCH easier to get my eye position right and I enjoyed some lovely 3D views of the Moon.  Result      So if you're struggling it may be worth a try

Helen

[Mark in Macc]

I'm baffled. How can binos be installed upside down?

[avtaram]

I found that to achieve focus in my ED120 the supplied Barlow had to be placed between the focuser and the 1.25 diagonal.

Not sure how Binoviewers can be installed upside down.

Avtar

[Helen]

To clarify....  I usually use them shaped like a mountain peak  like this   /\  on that night I used them like a V

Helen