[Aavso-photometry] Screen for "dome" flat?

[Ben Davies]

<http://www-kpno.kpno.noao.edu/glaspey/KP/FFLamps.html>

Hi Jim,

The link above is from KPNO.  It is quite good and discusses both lamps 
and paint.

Notice that they also throw a couple of filters in front of the bulbs - 
a neutral density filter plus a color correction filter that passes 
preferentially in the U and B bands.

Ben Davies


Jim Roe wrote:
> Thinking about installing a screen of some sort for taking "dome" flats 
> ("dome" being VERY generic in this case.  I have a roll-off shed that is 
> not very domish.).  What are suggestions for material, paint(?), 
> illumination, etc.  Right now I am using C, B, V, and I filters.
>
> Jim Roe [ROE]
>
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