These look incredible but I wonder if there is a point where the aperture on one telescope with binoviewers will give just as good light and field of view as a bino telescope setup.
I would imagine it must be up towards the 20inch point.
The cost of an 20 is probably double that of a twin 12" setup at least so on that basis it makes sense to do it.
As a side note, its quite amazing how people with refractive errors struggle to read certain lines on the snellen chart with individual eyes but binocuarly can get 3 lines further down! Its nearly as magic as the pinhole effect but with no loss of light and field of view.
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