The Society has recently bought a special filter for hydrogen-alpha imaging, which I have borrowed to do some tests.
But unlike the premium narrowband filters (which cost around £100), this one has a broader bandwidth (at half the price), which means that it rejects less stray light-pollution and moonlight, etc.
So last night I fitted this filter between my monochrome 1004x camera and a 50mm lens, and got this image of M42:
(the dark diagonal band is due to the shadow of a neighbour's 'phone line)
But now for the clever bit - I got the colour image which I took a couple of weeks ago with the SPC880LX webcam:
and (after some fiddling in IRIS) re-scaled and aligned the monochrome image with the colour one, and then substituted it for the Red channel in the colour image, to form this composite:
OK so the images are a little noisy, but I'm definitely getting to grips with the processing steps!
For those interested in imaging and image processing with DSLR, CCD, webcam or film.
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