"Jim"
There goes the days of the Denkmeier $599 standard! Way to go! Ever think
of
opening your own business?

This thing still uses 23 mm diameter microscope eyepieces. I will be
testing various types to see which works best, WF, periplan etc. The
Astronomical models use standard 1-1/4" eyepieces and probably have a larger
beam splitter and entrance aperture. I don't know. On axis I think both
would be comparable if you use WF type eyepieces which are colour corrected
Kellner types. As for starting a business, I've already got a headache and
don't need another one. ;-) I like retirement!
Ed