Re: [APML] BRC veil shot

["westergren" <westergren@netzero.net>]

Chris,

My film testing in the lab shows that E200 and Provia400 have nearly the
same red response (Provia is slightly more from 1 sec to 17 minutes, E200 is
slightly more 1 hour and longer).  The big difference between the two is the
blue response.  E200 is very low, while the Provia400 is more than a full
stop higher for just about all exposures.

Adding Provia doesn't mute the reds, it accents the blue.

Don

----- Original Message -----
From: "Chris Schur" <cschur@cybertrails.com>
To: <astro-photo@seds.org>
Sent: Friday, October 25, 2002 7:22 AM
Subject: RE: [APML] BRC veil shot


> Bobby, and superb image.  What was the reson for including the Provia 400
in
> the color mix?  was it to moderate the intense reds from the E200?
>
> Chris Schur
>
> -----Original Message-----
> From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
> Behalf Of Bobby Middleton
> Sent: Thursday, October 24, 2002 2:13 PM
> To: astro-photo@seds.org
> Subject: [APML] BRC veil shot
>
>
> I've uploaded an image of the entire veil nebula done with the Tak BRC.
This
> is a color film/tec pan composite. The color film exposures were 2 x 60min
> E200 and 2 x 60min Provia F400. The TP exposure was 60 min. I'm happy with
> the shot except for the lack of OIII response from the color films.
There's
> just nothing out there that does well for that right now in 120 format
> except aging PPF.
> My appreciation goes to Jim Janusz for coaching and more on the TP
> developing. Thanks Jim!
> http://www.koyote.com/users/bobm/veil.htm
>
> Comments and thoughts welcome.
> I'll post more as I finish them.
> Bobby Middleton
>
>
>
>
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