Astrophotography by Jeff Ball

Northern Cygnus Test Image



This image is a test under horrible conditions.  The Moon was nearly full with temperatures in the 70's and humidity in the 90's. 
The goal was to test the Lumicon broad band filter from the old TechPan days as a filter for the Canon modified DSLR.
This is a very quick processing just to see if the data was of good quality so that I may continue using this technique this evening.  
The image is exclusively from the red channel of the RGB raw file and has been contrast stretched in PS3 with star reduction in Images Plus and noise reduction in Noise Ninja. 

Lens f Mount Camera Exposure Digital info Location Date
Canon 90mm tilt/shift with Lumicon H-Alpha photographic filter f4 Losmandy G11 (unguided) Canon 350D
Hap Griffin Modified
63 x 2.5 minutes at ISO 1600 Images calibrated with Images Plus and enhanced with Photoshop CS3, Images Plus, and Noise Ninja. My light polluted, humidity filled, 70-degree low backyard. August 24, 2007

 

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