Bigger size: 1984x1330
DATE
April 25th, 2009
PHOTO
Exposure time:
RGB: 8x8' each channel
Total: 192 minutes
Focal: 385mm, f/3.6
EQUIPMENT
Imaging scope: FSQ106 EDX w/ 0.7x focal reducer
Camera: STL11000
Guiding camera: StarShoot Autoguider
Mount: Takahashi EM400
SITE & CONDITIONS
DARC Observatory, California
Seeing: Soft
Transparency: Soft
SOFTWARE
Stacking: DeepSkyStacker
Processing: PixInsight & Photoshop
COMMENTS
This was my very first "RGB only" image (no luminance), and what better target to experiment with that than this one - definitely one of my favorite areas in the sky. It has it all!! Well, almost!
Although I'm happy with the results, I'm not convinced RGB is really a "time-saver" from doing LRGB. In order to acquire perfect luminance from the RGBs, one should have a balanced amount of R, G and B exposures, and to get a better SNR, you still need as many subs as possible. Which means that since you're shooting RGBs, you need to get triple the number of subs. Of course time is not usually a big concern for people with permanent observatories, but for those of us who need to travel, setup, teardwn, etc. I still think it's better to get an ok amount of RGBs, then get as many luminance images as possible. I might change my mind later on, but for now I'll probably stick to get LRGBs.
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1 Comments
Comments
Giovanni Bernardi (Contact, Page), October 31st, 2009, 7:12
Beautiful pictures, dear Rogelio, I also have a astrophotographer and I have a deep admiration for your work. Congratulations
Hello Giovanni Bernardi
Lainate (Milan) (Italy)
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