I agree the lying-in-bed-half-awake experiments don't say
anything about the covered eye. The main point was to suggest
that the eye's responses are not really independent.
Probably the main thing you lose looking through the Telrad
is _contrast_ (even at the minimal setting) rather than light-loss
from reflections etc.
Combining Dean's suggestion of using binoculars through the
Telrad and having both a traditional finder and a Telrad is to
have a finder (like 3x or really low power) lined up to look
through the Telrad...but then why not just put the reticle in
the finder itself. Identify what it is that makes the Telrad easier
to look through and incorporate that into the low-power finder,
then you've got something you can sell! Is it just the very large
acceptance-angle of the Telrad (like having an exit pupil that's
100mm across or something)?
\Brian
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