RE: [APML] The Atmosphere of Venus

["Jeff Ball" <jeffball@astro-photography.com>]

One question Jerry on the refraction correction.  Did you do this in RAW
conversion or was this a photoshop technique?  Thanks again.

Best regards,
Jeff Ball
www.astro-photography.com
 

-----Original Message-----
From: astro-photo-bounces@seds.org [mailto:astro-photo-bounces@seds.org]
On Behalf Of Jerry Lodriguss
Sent: Thursday, June 10, 2004 1:10 AM
To: astro-photo@seds.org
Subject: [APML] The Atmosphere of Venus


I think I've managed to photograph the atmosphere of Venus as the planet

began to egress from in front of the Sun just after 3rd contact.

It is visible off the solar limb as a thin sliver of arc of sunlight 
refracting through the atmosphere of Venus.

It's at: http://www.astropix.com/HTML/SHOWCASE/VTRANSIT.HTM

Scroll down a bit from the top of the page...

Taken with a 130mm Astro-Physics Starfire refractor at about f/32 with 
eyepiece projection, 1/30th second exposure at ISO 800 with a Nikon D2H 
digital camera shooting Raw NEF and fine JPEG.

I've got comparisons between the original unmanipulated image and some 
enhanced versions, one done with a gradient map in Photoshop.

Jerry
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