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DoomWillFindYou — Horsehead and Flame in HaRGB
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Published: 2008-12-01 02:06:19 +0000 UTC; Views: 2147; Favourites: 64; Downloads: 124
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Description
This is the same data as the original H-alpha image with 90 minutes of additional RGB color frames. See the description of this object here - [link]Losmandy G-11, Takahashi E-130, FLI ML8300. 220 minutes total exposure time.
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Comments: 12
Great effort. You've handled Alnitak rather well.
However, what is it with the pixelation and noise?
Regards,
H
👍: 0 ⏩: 1
The luminance for this shot was 140 min of H-alpha - so I didn't really have to do anything to handle Alnitak. Even shooting at f/3.3 I'd need about twice as much time for this image to be really clean in the shadows - that background in the lower left is extremely faint! Even Robert Gendler's narrowband shot of this region has some background noise - and he had around 10-15 hours at f/5.
The pixelation is primarily JPEG compression. The image is much cleaner at full size as a 16 bit TIF.
👍: 0 ⏩: 1
Cheers for the heads up.
My version was 4 hours of data, but, captured with a DSLR. I had a field flattener on the instrument I was using, and as a result, had to deal with terrible, terrible reflections. It took eons removing them pixel by pixel, and, as a result, the final image suffered for the worse. Though, to the untrained eye, no-one will notice or mention the areas in question.
I didn't get a chance to have another go at this area this year. I'll try again next year.
I look forward to the day when an SBIG/FLI/SX and their ilk, becomes within my reach.
Regards,
H
👍: 0 ⏩: 0
Yep! Easy to see how this one got it's name.
👍: 0 ⏩: 0
Gracias!
This was a big project to put this shot together, but I'm happy with the result.
👍: 0 ⏩: 0
