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Steve Mastellotto | all galleries >> Galleries >> Astrophotos > The North American Nebula
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03-SEP-2005

The North American Nebula

This image is a combination of three 10 minute exposures. Each image was
shot at 200mm, f/2.8 and ISO400. I subtracted a dark frame from each image
and then combined them in Photoshop CS2. I applied a slight curves adjustments
and noise reduction with Noise Ninja.

Canon EOS 20D ,Canon EF 70-200mm f/2.8L IS USM
600s f/2.8 at 200.0mm iso400 hide exif
Full EXIF Info
Date/Time04-Sep-2005 00:44:50
MakeCanon
ModelCanon EOS 20D
Flash UsedNo
Focal Length200 mm
Exposure Time600.00 sec
Aperturef/2.8
ISO Equivalent400
Exposure Bias
White Balance (-1)
Metering Modematrix (5)
JPEG Quality (6)
Exposure Programprogram (1)
Focus Distance

other sizes: small medium original auto
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