Re: [APML] Ha on Kodak E200

[Jerry Lodriguss <jerryapml@astropix.com>]

I've tried E200 with a Lumicon h-alpha filter and found that it didn't 
record any more emission nebulosity in the red layer than the film did when 
used with and IDAS LPS filter.

So it's probably not worth the extra exposure time required.

Jerry




At 01:04 PM 10/28/2004, you wrote:

>In a message dated 10/28/04 11:35:40 AM, svelo@home.no writes:
>
><< Hello all
>
>
>Just joined the APML list.
>
>
>Anyways, since Kodak discontinued TP it seems like Ha imaging with film
>
>is slowly going under.
>
>Unfortunately I have never had the chance to try it, so I have always
>
>shot E200.
>
>It seems like for now E200 would be a somewhat worthy follower to TP.
>
>
>Did some testing with E200 and a Astronomik 13nm Ha filter, results can
>
>be found at http://www.home.no/svelo/temp/
>
>The Ha picture is a 40min exposure, and the color one is 40min Ha+20min
>
>unfiltered.
>
>
>Clear skies
>
>Jonas Förste >>
>
>Jonas:
>An interesting concept.
>So.....you exposed E200 for 40 minutes with the Ha filter and 20 minutes
>unfiltered?
>The results are interesting.
>
>At first, I thought exposing E200, a color transparency film, thru an Ha
>filter was not worthy of consideration. It seems E200 should record all 
>the Ha it
>can unfiltered, but then the same could be said for hypered Tech Pan.
>Sometimes Ha filters are used in light polluted areas to filter out the 
>polluting
>wavelengths with Tech Pan......so, I guess, why not with E200?
>
>There seems to be more than one way to skin a cat.
>
>Kent Kirkley
>_______________________________________________
>Astro-Photo mailing list
>Astro-Photo@seds.org
>http://seds.org/mailman/listinfo/astro-photo

_______________________________________________
Astro-Photo mailing list
Astro-Photo@seds.org
http://seds.org/mailman/listinfo/astro-photo