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Old 03-02-2008, 12:12 AM
tornado33
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M42 narrowband colour

Here is my first ever colour DSO shot with a monochrome camera. I used the un cooled q guider with the 6 inch f3.6 SN as there was high cloud and no good for my usual DSLR shooting, so decided to experiment with the monochrome camera.

I used 30 Baader7Nm Ha images @17 secs each and gain of 55 for red channel
32 Baader narrowband O3 images @20 secs each, gain 55 for green and blue channels (I dont have a SII filter)
30 UV/IR filtered shots 15 secs each gain 58 for Luminance.
Shots aligned then processed with the LRGB setup in Iris. Tweaked in PS

Ive also attached the luminance image I used. Haze and high cloud about.
Guiding manually but using my toucam with Guidemaster, and manually slowing or speeding the drive watching a guidestar on the laptop and occasionally adjusting the dec hand control
Scott
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Old 03-02-2008, 03:44 AM
jase (Jason)
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Scott, for a 7nm Ha filter you're going to need considerably more exposure time than 17sec! Look forward to seeing some narrowband images from you soon.
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Old 03-02-2008, 07:04 AM
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theodog (Jeff)
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Good to see you experimenting with mono Scott.
Sure you need more data but the image demonstrates the potential of your system.
Well done.
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Old 03-02-2008, 07:46 AM
tornado33
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Its only going to work on bright subjects. The q guider was never meant for serious DSO imaging. I cannot go past a max of 30 seconds or noise predominates the image. The camera could probably go deeper going full spectrum, that is no filter at all not even a uv/ir one. I did get off a couple of full spectrum frames but cloud came just as I was getting started.

My next plan is to take a full specrum stack and check what magnitude it goes down to. The skies have been terrible here, leading me to experiment with the q guider rather then use the DSLR
Scott
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