PixInsight Forum (historical)
PixInsight => General => Off-topic => Topic started by: Ginge on 2010 October 13 23:17:43
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Congrats on another spectacular shot Rogelio, beautifully framed with Hartley, Doublecluster and the Heart.
Best regards,
Ginge
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Congratulations!
Well planned and executed 8) :)
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Don't you sleep man O:) Oh of course you don't silly me
Harry
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Actually, there wasn't much planning involved - other than knowing, like everyone else, that the comet was going to fly by "next" to the DC - and there's actually a rather little data (something that's becoming a signature on me, not something I'm particularly proud of BTW!). I also processed it really fast and without much attention to detail, I mainly wanted to get it done so I could "see the view", and also because I have a bunch of data for other two projects that have taken me a lot of effort to capture (read: lots of hours at dark sites, lots of driving, many sleepless nights, etc). Those big cyan circles around many of the stars in the APODed image - among other things - are a testimony of what I just said.
But current events tend to get attention in sites like the APOD, and maybe because I chose the wider field, they found it more interesting than other images that maybe only had the comet and the DC but were likely at much greater resolution, quality etc. I like wide fields because they're "affordable" to me. Did I ever mention I have a VC200L that's just eating up dust in the garage?
Harry, you're correct. I don't sleep, I simply rest, from time to time ;)
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And YET another APOD! You're on a spree Rogelio. Congratulations once more! Are you collecting for the ultimate mosaic?
Best regards,
Ginge
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Get some sleep man O:)
Harry
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That Orion is amazing! Congratulations!
RBA, how do you excavate all that color and saturation from this limited data, like
Each frame: L: 3 x 5', RGB: 3x3' each, Ha: 1 x 15' (http://blog.deepskycolors.com/archivo/2010/10/22/orion-from-Head-to-Toes.html)
in this case? ???
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RBA, how do you excavate all that color and saturation from this limited data, like
Each frame: L: 3 x 5', RGB: 3x3' each, Ha: 1 x 15' (http://blog.deepskycolors.com/archivo/2010/10/22/orion-from-Head-to-Toes.html)
in this case? ???
That is exactly what i was thinking and would like to know .... ??? ???
Excellent image :D
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fantastic results and congratulations on your many APOD images - well deserved
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Thanks for the "felicitaciones"! :)
RBA, how do you excavate all that color and saturation from this limited data, like
Each frame: L: 3 x 5', RGB: 3x3' each, Ha: 1 x 15' (http://blog.deepskycolors.com/archivo/2010/10/22/orion-from-Head-to-Toes.html)
in this case? ???
3x3' binned data for RGB won't give you data to do scientific analysis, but that's what I've been capturing for many of my latest mosaics, and it does the job. At this scale, and keeping in mind you're building an "outreach" image, not something of immediate scientific value, extreme color detail isn't necessary. I don't even blur the color data anymore (ive done it in the past when I felt it was too noisy), just combine it, do some normal processing to it via histograms, and at most a light ACDNR on the chrominance either before combining it with the L or afterward. Saturating the color to your liking isn't hard and doesn't require an extensive tutorial. I don't use the "S" selector in the Curves tool (or maybe I should say I barely use it), but I love playing with the ColorSaturation curves. There's no secret or tricks or anything I'm keeping to myself. Shoot something at this scale, get just 3-5 subs of 3 minute exposures with a camera at a similar (or higher) QE and similar (or lower) noise levels, and you'll probably come to the same conclusion. 2x2 binning works well here because the subs are short and that helps with the read noise.