Sharpless 2-54 in [SII], Halpha and [OIII] from Stinger 450 Classical Cassegrain, FLI Dream Machine and Custom Scientific Filters

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Taken on August 9, 10, 13 - 17,  2007 from my backyard in Castro Valley, Ca.

Stinger 450 Classical Cassegrain (18" f/12.6)  

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

Lumicon Giant Easy Guider with Focal Reducer

SBIG ST7E guide camera

Robofocus

Finger Lakes CFW1 Filter wheel

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

6  exposures of 20 minutes through Halpha filter

7  exposures of 20 minutes through [SII] filter

20  exposures of 20 minutes through [OIII] filter

11 hours total exposure time