Re: [ATM] Stereo view

[Wouter van Reeven <wouter@van.reeven.nl>]

Hi Arjan,

On  0, Arjan te Marvelde <arjan.te.marvelde@hetnet.nl> wrote:
> A question about binoscopes:
> I was wondering wheter the stereoscopic aspect of binocular viewing has
> anything to do with the acclaimed better results. This can hardly be the
> case, since even with a bino-scope the eye-base is nothing compared to the
> object distance. So the effect must be in your head, where the nervous
> system does some smart signal processing with the dual light source.
> But if this is the case, why are so many people going through the hassle of
> making a complete double telescope, while just a binocular eyepiece would
> suffice?
> Who knows the answer?


I guess one reason would be image brightness. Using two scopes (one for
each eye) would maintain the brightness of the field of view, while
using a binocular eyepiece splits each beam of light in two. This will
decrease the fov brightness by almost a full magnitude.
By the way, using the 1 meter telescope in Puimichel, South of France, I
have seen the stereoscopic effect using two eyepieces. The brightest
stars of the Pleiades seemed to hover in front of the fainter ones.
Quite a view!


HTH, Wouter van Reeven

-- 
Black holes are where God is dividing by zero.
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