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Samir Kharusi | all galleries >> Colour of M8, the Lagoon Nebula > Blue Lagoon
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Blue Lagoon
30-MAY-2003

Blue Lagoon

The Galactic Center taken by a Canon 1Ds DSLR, 3x110sec exposures, Daylight White Balance. Nil colour manipulation. Note how blue the Lagoon and Trifid are. This is because the 1Ds (and the human eye) is >10x more sensitive to blue H-Beta and green/blue OIII than to red H-Alpha. The Lagoon seems to spew out roughly equivalent intensities in the Blue/Green as in the deep Red H-alpha, but since the unmodified camera is >10x as sensitive to the Blue/Green, you end up with a Blue Lagoon. Canon 100/2.8macro USM lens used at f3.2, ISO 1250.

Canon EOS 1Ds
3x110s f/3.2 at 100.0mm iso1250 full exif

other sizes: small medium large original
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longbachnguyen30-Dec-2012 07:36
that is pretty cool
Guest 20-Feb-2007 17:35
Thanks for sharing all this wonderfull stuff.
oz_ranger29-Sep-2006 18:35
How do you get these wonderful shots!!!