[ATM] mirror box baffle question

[Dave Smith <smithersscope@yahoo.com>]

Can anyone comment on the diameter of a baffle in the
mirror box. Should it be the approximate diameter of
the mirror itself? If so, are there issues with having
such tight tolerances between the optical path and the
baffle? I designed my baffle for my 16" mirror with a
16" baffle hole. Now I'm having second thoughts.

Kriege & Berry have a short description in "The
Dobsonian Telescope", but I found it confusing and
there are no images to go from. In Fig. 11.4 (later in
the book) it would appear that the light baffle
diameter is several inches larger than the mirror, but
it could be an illusion.

Recommendations? Suggestions?

Dave


 
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