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Taken March 10, 2007 from my backyard in Castro Valley, California
Lumicon Giant Easy Guider with Focal reducer for final: F= 3366mm, f/7.1
Finger Lakes CM10 MaxCam imaging camera operated at -25C
Robofocus
Finger Lakes CFW1 Filter wheel
SBIG ST7E guide camera
Seven exposures of 10 minutes through broadband filter
one hour 10 minutes total exposure time
Other work in the Crab:
Some new ideas for making a Crab Nebula image HUBBLE inset
(to be discussed at ECCAI2007, late Sept 2007)