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Old 28-08-2009, 05:39 PM
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Octane (Humayun)
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Join Date: Dec 2005
Location: Canberra
Posts: 11,159
Matt,

My understanding is that this region emits a lot of oxygen, hence the green.

I could be wrong.

My first attempt at photographing that region through a 105mm triplet and an unmodified 350D came out entirely blue with the slightest magenta portions.

Regards,
Humayun
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