M33 Widefield from Pentax 400mm f/4 medium format 6x7 lens, FLI IMG6303E and Optec RGB filters

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Taken on December 24, 2007 from my ranch near Mariposa, Ca.

(full moon conditions)

Pentax Takumar 400mm f/4 medium format camera lens  (first light and used at f/4)

Finger Lakes IMG6303E imaging camera operated at -45C

Finger Lakes DF2 Digital Focuser

Finger Lakes CFW7 Filter wheel

Takahashi FCT-76 guide scope

SBIG ST7E guide camera

Custom made camera mounting frame

Optec RGB filters, 50 mm unmounted

17 exposures of 20 minutes for Red

12 exposures of 5 minutes each for Green, Blue

3 hours 25 minutes total exposure time

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