NGC4656 Unfiltered from Stinger 450 Classical Cassegrain and CM10 Maxcam

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Taken on  April 18, 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 CM10 MaxCam imaging camera operated at -25C


Finger Lakes CFW1 Filter wheel

SBIG ST7E guide camera

nine exposures of 20 minutes no filter used

Three hours total exposure time

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