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Taken on September 19, 2005 from my backyard in Castro Valley, California
Pentax Takumar 200mm f/4 medium format camera lens
Finger Lakes CM2-1 imaging camera operated at -20C
(to see biases/darks and flats for camera gain/readout noise measurements, click here)
(to see a three frame dark, a 10 frame flat and a single raw image click here)
Finger Lakes DF2 Digital Focuser
Finger Lakes CFW7 Filter wheel
Takahashi FCT-76 guide scope
SBIG ST7E guide camera
Custom made camera mounting frame
Custom Scientific 3nm Ha filter (50mm unmounted)
five exposures of 20 minutes for Halpha
three darks only!
one hour 40 minutes total exposure time