TS-Optics Binoviewer 1.0 magnification zero optical path binoviewer is tested finally under stars and Jupiter.
To be lets say relatively fair play, I add to test standard TS binoviewer, not Supercharged yet, from link
Telescope for test was LZOS 100mm f/8, and I didnt add any prism nor diagonal, so only clean optical path between binos and objective.
Eyepieces for test were new Baader Classic orthos 18mm and 6mm pairs, all borrowed.
About collimation: I released right eyepeice side ring that I could shift eyepiece in it a bit to achieve desired collimation.
I was very suprised what I saw, no matter which eyepieces I put inside binoviewer:
1. new TS zero optical path bino have MUCH dimmer right side vs left side, which is VERY pronounced. I know brain compensate that diference, but difference is so much noticable, that brain compensate that after longer period of observing (several minutes and more), with some strain I have to say. Strange, I have never such experience, even knowing many binoviewers, especially older ones, with big difference in bightness on left side vs right, where brain compensate that immediately.
2. when image is defocused on bright stars and Jupiter, star is not full circle, but actually splitted circle, and when image is more deocused on any side, distance between splitted circle is more and more bigger. Very strange, and its becasue optical system inside bino. Ok, but in focus all is fine with pict.
3. by observing Jupiter, at very first, I notice something VERY strange: on left and right side, there is some fogged like reflection, like flat galaxy or nebulae, and I dont know how to call it, and its very elongated on each side equally long, and its longer than I would say 5 or more Jupiter diameters on each side. Thats effect caused by optical system of course. When bino is rotated, this reflection rotate with it. With eyepieces rotation inside focusers, reflection stays on place.
That was what I notice first, without comparing it vs other binoviewer I add to test.
And then I add standard TS binoviewer.
WOW, I notice immediately that picture is MUCH brighter in TS standard bino, vs new TS zero path bino.
Not only that, I see MUCH more details on surface on Jupiter, and when I sayed MUCH more, I mean it like that.
There is not strange reflection on each side as well.
I also notice some slight colours arround Jupiter.
Contrast is noticable better in TS classic binoviewer.
Light scatter is MUCH lower as well in TS standard bino, and pict is TS zero path bino looks much more foggy (yes, lenses are clean on it, and dust fron lenses blowed away from it).
So, I think all these parameters were enough for test and comparation, and all these "negative" results, are results from too complex design of new TS zero path bino in my opinion.
Now my curiosity is fulfilled
Kind regards and all best
Denis, binoviewers expert