RE: [APML] Lagoon and Triffid Region

["Chris Schur" <cschur@cybertrails.com>]

Loke, Your right, there is a lot of dynamic range in this field, and that
HC110 dillution is a good choice to retain the often blown out red images
common with schmidt images.  Another difficult field of this type is of
course NGC7000.  I can appreciate your well processed image!

Chris Schur

Astrophotography: http://www.psiaz.com/schur/astro/index.html


-----Original Message-----
From: owner-astro-photo@seds.org [mailto:owner-astro-photo@seds.org]On
Behalf Of lkt
Sent: Wednesday, May 29, 2002 1:55 AM
To: astro-photo@seds.org
Subject: [APML] Lagoon and Triffid Region



	OK, here is another shot of the M8 (Lagoon) and M20 (Triffid) region in
Sagittarius. This was taken with an 8" F/1.5 Schmidt camera with
tricolor filters on hypered Tech Pan. HC110 Dil. B was used to process
the film for 14 mins. This developer was selected due to the extreme
brightness of the core of M8 and M20 which means that the image would
have a lot of dynamic range. Even so, the red channel was done with a
composite of a 5 min and a 25 min exposure with a #92 filter. The long
25 min exposure with the #92 filter can extract a lot of the red
nebulosity in this region but the cores of M8 & M20 were saturated. More
exposure data is on the webpage. Comments are welcome.

http://www.starryscapes.com/nebula/m8_m20_wide.html

Loke

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