11988Re: [tmboptical] Re: Color Correction
- Oct 9, 2003Bill,
--- wjburg <wjburg@...> wrote:
I was thinking, if someone really wanted to customize
an instrument for use on one special object or
situation, such as Mars, would it be worth while to
go all the way and also tailor the eyepieces to that
application? Photographers often choose a film to
compliment their subject.
Would it be practical? I don't know. Thomas is the
one to provide that answer.
In concept, the answer is yes.
You certainly can, with modern computer design
software, compute correction distributed through the
whole system. Of course, you might no longer have any
interchangability outside of your system specific
components. But this might be OK for someone seeking
truly optimum performance.
But I don't know if there would be a benefit with
today's fine optics. Perhaps for some situations.
For planetary observation I doubt it. Optically, a
fine apo like a TMB is already about as good as you
can get on axis. So too with an eyepiece like the TMB
Monocentric, again on axis. Each is designed to stand
alone. But Tom would need to tell us if he could have
achieved a "sensible" gain if he had designed them
together. My guess is no, you could never perceive
the difference even if the design software said there
were a little bit.
For wide field viewing, my guess is their might be
something to gain. This is Thomas' forte! But if he
hasn't already investigated doing this, it might be
very time consuming for him to provide a difinitive
So Thomas, maybe someday when you have time?
There is an interesting historical question here too.
Perhaps Thomas can answer it too. Did any of the
early telescope makers like Fitz, Clark or Zeiss to
name a few (or modern manufacturers for that matter);
ever deliver astronomical telescopes where the
objective and eyepieces were optimized as a system and
needed to be used together?
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