tornado33
21-02-2006, 01:28 PM
Hi all
I just had another play with Iris, this time my first astro images I took with my new camera 2x10mins ISO 200 with in camera n/r on (as at the time I didnt know how to do dark subtraction in iris). Anyway ive learnt some more of iris since then. Just now, I extracted both raw images in iris to cfa (monochrome looking images result), aligned them with single star align, then stacked them. I found that by ramping up the gamma ,faint detail that is lost starts to come out while preserving the brighter detail.
I also found the on the fly colour balance (white balance) function , they are both under View. I balanced the colour till it "looked right" then ramped up the colour balance. I used Levels to get a bright overexposed image showing just the fainter stuff and a dim image showing just the bright stuff.
I then masked them together in Photoshop, then ran Noiseware. Here is the result. I cant believe so much colour detail was in there that wasnt apparent on the raw images.
Scott
I just had another play with Iris, this time my first astro images I took with my new camera 2x10mins ISO 200 with in camera n/r on (as at the time I didnt know how to do dark subtraction in iris). Anyway ive learnt some more of iris since then. Just now, I extracted both raw images in iris to cfa (monochrome looking images result), aligned them with single star align, then stacked them. I found that by ramping up the gamma ,faint detail that is lost starts to come out while preserving the brighter detail.
I also found the on the fly colour balance (white balance) function , they are both under View. I balanced the colour till it "looked right" then ramped up the colour balance. I used Levels to get a bright overexposed image showing just the fainter stuff and a dim image showing just the bright stuff.
I then masked them together in Photoshop, then ran Noiseware. Here is the result. I cant believe so much colour detail was in there that wasnt apparent on the raw images.
Scott