Quote:
Originally Posted by telecasterguru
I don't know if this has been asked before but what is the difference between a Luminance filter and a Hydrogen Alpha filter?
Is it just the bandwidth that the filter lets through or is it moer than that?
Thanks
Frank
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A Ha Luminance is only red. A normal Lum lets in Red, Blue and Green.
That's why it's harder to process colors using a Ha blend. If you don't do it right you'll mute the blues and greens and will get those salmon pink pictures. Also Ha will bring more faint details and tighter stars (also less of them) than a normal Lum.