IC1396 widefield region in [SII], Halpha and [OIII] from Pentax 150mm and IMG6303E

[SII] = red, Halpha = green, [OIII] = blue

click image to enlarge, click here for highest resolution

30%*[SII] + Ha = Red, [OIII] = Green, [OIII] + 30% * Halpha = Blue

see here for more details on emission line derived RGB process

click image to enlarge, click here for highest resolution

Taken on May 26, 2007 and June 8, 2007 from Fremont Peak State Park, near San Juan Bautista, Ca.

Pentax Takumar 150mm f/2.8 medium format camera lens  (stopped to f/4)

Finger Lakes IMG6303E imaging camera operated at -26C

Finger Lakes DF2 Digital Focuser

Finger Lakes CFW7 Filter wheel

Takahashi FCT-76 guide scope

SBIG ST7E guide camera

Custom made camera mounting frame

Baader Planetarium 7nm Ha filter (50.8mm unmounted)

Baader Planetarium 8nm [SII] filter (50.8mm unmounted)

Baader Planetarium 8nm [OIII] filter (50.8mm unmounted)

5 exposures of 20 minutes for Halpha

8 exposures of 20 minutes for Sulfur

9 exposures of 20 minutes for Oxygen

7 hours 20 minutes total exposure time

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