Re: [APML] Light pollution filters and Comet NEAT

[steve banbury <banburys@sonic.net>]

Hi Dale--I'd love to see your comparative shots.
Over the past 2 nights I shot 7 minute and 15 minute exposures on 
"unimproved" Fuji NPH400 film on a TV101
with and without the IDAS filter. I hope to get it developed today. Not 
a great comparison because it was
over two nights, but the best I could do between clouds and an 
uncooperative pine tree!

:^) Steve


Dale Ireland wrote:

> I took some NEAT shots with and without the IDAS filter with a Nikon D70,
>Nikon 58mm NOCT f/1.2 lens, 2-3 minutes. I got more and better tail
>structure in both the ion and dust tails WITH the filter which allowed
>longer exposures but even exposures of the same length looked better with
>the filter. Of course the camera has its own spectral response so I can't
>say this translates exactly to film but it worked in my situation.
>Dale
>
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