Re: [APML] Esthetical effects filters

["Alson Wong" <alsonwong@earthlink.net>]

I use a Promaster diffusion filter, but I don't think they're manufactured anymore. Several images taken with it are on my Web site:

http://home.earthlink.net/~alsonwong/crux-car.htm
http://home.earthlink.net/~alsonwong/centauru.htm
http://home.earthlink.net/~alsonwong/scorpius.htm
http://home.earthlink.net/~alsonwong/cygnus.htm
http://home.earthlink.net/~alsonwong/orion.htm

Alson

----- Original Message ----- 
From: "Thom Iwancio" <tiwancio@sc.rr.com>
To: "'Discussion of Film Astrophotography'" <astro-photo@seds.org>
Sent: Wednesday, May 07, 2003 5:36 PM
Subject: RE: [APML] Esthetical effects filters


> John, who makes the glass ones?  I have the Cokin 4 point I have used
> nicely for terrestrial photos but haven't tried it for astrophotography.
> I am pretty sure it is plastic.
> 
> 
> Thom Iwancio
> Elgin, SC
> www.machunter.org
> 
> 
> -----Original Message-----
> From: astro-photo-bounces@seds.org [mailto:astro-photo-bounces@seds.org]
> On Behalf Of John C. Mirtle
> Sent: Wednesday, May 07, 2003 8:19 PM
> To: Discussion of Film Astrophotography
> Subject: Re: [APML] Esthetical effects filters
> 
> Here's a couple...
> http://members.shaw.ca/spampit/cayley.htm
> http://members.shaw.ca/jmirtle/m44.htm
> 
> These were done with a glass 8 point "star" filter. They are available
> in 4,
> 6 and 8 point - possibly more. There are two types of star filters -
> glass
> or plastic. The glass ones usually are AR coated and work well, even
> when
> left on for the entire exposure. All the stars are sharp. The plastic
> ones
> usually introduce a so-called "soft focus" look. While this may make for
> nice romantic portraits, they are totally devastating for astrophotos.
> Stick
> to glass.
> 
> John Mirtle
> http://members.shaw.ca
> 
> 
> 
> 
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> 


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