M20

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Image Details

Optics: Astro-Physics 155 EDFS f/7
Mount: Software Bisque Paramount ME.
Camera: SBIG ST10 XME with CFW8A.
Filters: Custom Scientific 4.5nm H-alpha and OIII. 
Date: August 2012
Exposure: Ha:OIII = 90:165 minutes
Acquisition: CCDSoft 5, TheSky6, CCDAutoPilot5 basic 
Processing: Pixinsight 1.8, Photoshop CS5.  Color Information was blended as follows: Red = Ha, Green =  20% Synthetic Green + 80% OIII, Blue = OIII.  The synthetic green was generated using the following formula: if(OIII>0.5 then (1-(1-Ha)) x (1-(OIII-0.5)) else (Ha*(OIII+0.5)). The Ha image was substituted back for Luminance information.