Let me show you best Leitz Wetzlar binoviewer ever made.
All potentional Leitz binoheads passed through my hands through years....and I waited longer time to do job right with it!
I was able to adapt that beast with little pain, to transform it in PRO way for astronomy usage.
Its very very rare model, longer time discounted, and almost impossible find to buy.
Its super robust, with weight of 1368 grams (yes, super heavy, but metals used are high quality, and no plastic parts like many nowdays binoviewers have).
Light path 12.2cm at IPD 67mm.
Sharpness, contrast and light scatter, match performance of BIG Zeiss binoviewer.
Denis, binoviewers expert