M16 Widefield in [SII], Ha and [OIII] Light

Click image to enlarge, click here for highest resolution

[SII] = Red, Halpha = Green, [OIII] = Blue

Taken on July 3, 2005 from my backyard in Castro Valley, Ca. 

AP180EDT f/9 imaging scope used at f/6.75

AP 0.75x Telecompressor

FLI CM10XME imaging camera @ -26C

AP80/900mm guidescope

SBIG ST7E guide camera

FLI CFW7 color filter wheel

Custom Scientific AR-Coated 50mm Halpha (3nm FWHM) filter

Custom Scientific AR-Coated 50mm [SII] (3nm FWHM) filter

Custom Scientific AR-Coated 50mm [OIII] (3nm FWHM) filter

3 exposures of 20 minutes through Halpha Filter

6 exposures of 20 minutes through [SII], [OIII] Filters

5 hours total exposure time 

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