M16 Eagle Nebula in Halpha from Stinger 450 Classical Cassegrain and FLI IMG1024S Dream Machine and Custom Scientific Halpha filter

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Taken on August 27, 2007 from my backyard in Castro Valley, California

Stinger 450 Classical Cassegrain (18" f/12.6)  

Lumicon Giant Easy Guider with Focal reducer for final: F= 3366mm, f/7.1

Finger Lakes IMG1024S Dream Machine imaging camera operated at -30C

Robofocus

Finger Lakes CFW1 Filter wheel

SBIG ST7E guide camera

Custom Scientific 4.5nm FWHM Ha filter (50mm diameter)

seven exposures of 20 minutes through Halpha filter

two hours  20 minutes total exposure time

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