M31 RGB from Pentax 300mm 6x7 Lens and IMG6303E with FLI PDF Focuser

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Taken on October 16 - 18, 2006 from my backyard in Castro Valley, California

Pentax SMC 300mm f/4 medium format (6x7) camera lens

FLI IMG6303E Imaging camera operated at -26C

Takahashi FCT76 guide scope

ST7ME guide camera operated at -20C

FLI CFW7 color filter wheel

FLI PDF Digital Focuser

Custom made camera lens adapter system

FLI Research Grade RGB filters

12 exposures of 5 minutes through Red Filter

12 exposures of 5 minutes through Green Filter

18 exposures of 5 minutes through Blue Filter

Three and a half hours  total exposure time

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