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Re: filmscanners: Stellar ghosts and Nikon Coolscan IVED (LS40)



"Harry Lehto" <hlehto@oj287.astro.utu.fi> wrote:
> When I scan an image containing black sky and bright stellar images with a
> Nikon Coolscan IVED (=LS40) , then close to the edge of the field every
> bright (saturated) stellar image has a faint ghost image separated from
> the main image (by 20- 40 pixels).

Dumb question; I presume they aren't in the source image as reflections
in the telescope elements?  I get similar ghost images when I photograph
the moon.

Otherwise presumably they must be reflections in the lens elements of the
scanner. :-7

Rob





 




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