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Sunday, June 26, 2011

Filaments in black and white, Veil Nebula

I don't usually post in black and white, but during post-processing I liked the look and feel of  this.

A beautifully clear and dark evening afforded this fine take. Unlike star-forming emissive nebulae, the Veil Nebula is the diffuse remnants of a massive supernova. Dim nebula like this are difficult shots for a DSLR camera, even for a modified one as used in this photo. The image effectively comprises 75 minutes of exposure at ISO 1600. Something like this would make a great project over several nights to produce hours of exposure.

Technical bits: unguided, 300 x 15 sec. JPEG frames, 1600 ISO, modified Canon 450D, 200/200 bias/flat calibration, DDP post-processing, and slight color level adjustment. No stretching.  

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