Re: dawn and twilight sky flats

[Chris Albertson <chrisalbertson90278@yahoo.com>]

No, I didn't mean to imply that we'd need to spend big $$ just
that one class of "professionals" can and does.  If it costs $100M
just to launch a system why not spend 1% of that on testing?

Also the equipment is not so expensive or complex.  The sphere could
be made for $10.00 out of newspaper, starch and paint.  The other
design uses plastic drain pipe, paper screens and a bulb from a
flashlight.  These things would e expensive of we were using even
a 1 meter optic but we aren't.


--- Jure Skvarc <Jure.Skvarc@ijs.si> wrote:
> > 
> > People who fly eletrooptic systems in space do use very complex
> > and expensive equipment to calibrate their systems.  A Mk IV
> > mor resembles a spacecraft system then a large observatory
> > telescope.
> > 
> This is an interesting analogy.  I hope it does not imply that very
> complex and expensive equipment will be needed for proper flats. 
> This
> would mean a rather unbalanced design, having in mind rather limited
> capabilities of the mount and large distortions of the lenses.  Some
> people might think it would be better to invest equivalent amount of
> time
> and money into these components instead.
> 
> 				Jure Skvarc
> 
> 
> 


=====
Chris Albertson 
  Home:   310-376-1029  chrisalbertson90278@yahoo.com
  Cell:   310-990-7550
  Office: 310-336-5189  Christopher.J.Albertson@aero.org

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