Gamma Cygni region in RGB from Pentax 300mm f/4 (6x7 format) and FLI Proline PL39000C OSC

click image to enlarge

for HD resolution click here

for 6 megapixel resolution click here

for 39 megapixel resolution click here

Taken on May 29, 2009 from my ranch in the California Gold Country

Pentax SMC 6x7 300mm f/4 lens used at f/5.6 

Finger Lakes CFW 4-5 filter wheel 

Finger Lakes PDF focuser

Finger Lakes Proline 39K color camera

Baader Planetarium 50 x 50 mm square IR blocking luminance filter

Takahashi FCT76 guide scope

SBIG ST7ME guide camera

AP1200GTO mount

11 x 15 minutes data

2 hours 45 minutes total exposure