[bojan]

Well, because my Meade f/0.63 FR doesn't perform as it should, I decided to make my own, just for comparison.
I had couple of binocular achromats of adequate diameter (ø42 mm) and FL (~180 mm), I machined the holder (black Delrin) that fits into 2" adapter barrel (in place of 2" filter).

I don't expect much of it, but still hope for clear skies next weekend...