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Yours truly

North  America  & Pelican  Nebulas

in  H-alpha  light

A color version, utilizing this image as the luminance layer, and a standard RGB image for the color layer is here.

 Date  2002-06-28
 Optics  Nikkor f/2.8 80-200mm zoom at 200mm, f/4 on A-P 1200 GTO mount    
 Exposure

 16 x 10 minute frames on ST-10 XME/CFW-8a with Mandel Adapter; 

 Custom Scientific H-alpha filter. MaxIm 3.07   

 Processing  

 Calibrated and combined, then mild low pass DDP applied in MaxIm;       

 finally levels adjusted and mild unsharp mask and blur applied  in Photoshop 6.    

 

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