Re: [APML] Light pollution effect on film photography

["John Boudreau" <jeboud@mediaone.net>]

The Orion filter would be in the "similar filter" group I was referring to
when I wrote about the Lumicon filter: "It gained a following because at one
time it (and similar filters) were the only game in town."

I owned the Orion filter. It had the same strong color shift as the Lumicon
Deep Sky.

John Boudreau
jeboud@mediaone.net
http://people.ne.mediaone.net/jeboud/astro.htm

----- Original Message -----
From: Mark Park <mark_park@hotmail.com>
To: <astro-photo@seds.org>
Sent: Tuesday, January 15, 2002 9:24 AM
Subject: Re: [APML] Light pollution effect on film photography


> How about the Orion sky glow filter?
>
>
> >Date: Mon, 14 Jan 2002 09:38:51 -0500
> >From: "John Boudreau" <jeboud@mediaone.net>
> >Subject: Re: [APML] Light pollution effect on film photography?
> >
> >Scott, the Lumicon filter causes a strong magenta color-cast for color
> > >astro
> >work. It also kills reflection nebulosity and much of the light coming
> > >from
> >galaxies, but allows recording of emission nebula well. It's very good
>for
> >B&W work with hypered Tech Pan though. It gained a following because >at
> >one
> >time it (and similar filters) were the only game in town.
>
> >The IDAS filter (used to be called Tokai), gives almost no color >shift.
> >It's
> >not as aggressive a filter as the Lumicon Deep Sky, but overall a >vastly
> >superior filter for astrophotography.
>
> >John Boudreau
> >jeboud@mediaone.net
> >http://people.ne.mediaone.net/jeboud/astro.htm
>
>
>
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