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Rankinstudio
sage
Reged: 04/05/08
Posts: 418
Loc: Salt Lake City, UT, Lake Powel...
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I have been messing around with Registar for my registration and stacking. I really like how it works. (not looking to argue about which is better). I am just wondering if anyone else is familiar with this program, and could help me out. The help file is not so helpful in a few areas. I am having an issue with the program crashing after loading 26 images. I realize this is a memory problem with a 32bit operating system running up over 3bg of memory (even tho I have disabled the vista 3gb switch and have 4 gb)
Anyway, if anyone uses this and usually stacks more than 30 frames..how do you get them combined using the program without it crashing? OR if you use the option to stack in an external program, which one do you use and how do you go about doing it? I could really use some help as I am stacking over 32 images and really love this program.
David
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David Rankin
http://www.rankinstudio.com
Astro Gallery
Orion 254mm F4.7 (imaging scope)
Baader MPCC
Quickcam pro 9000 (guider, imager)
Canon Rebel XSi (self modified)
Atlas EQ-G (EQ MOD)
Canon 50mm F1.8 II Lens
Canon 28-200 F3.2 Lens
DSLR peltier cooler
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s58y
Postmaster
Reged: 12/12/04
Posts: 5509
Loc: Eastern NY
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If I have more than about 20-25 frames, I combine them in groups or about 20, using the usual mean-median combine. Then I take the combined shots and combine them using plain average, with weights proportional to the number of subexposures in each group.
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Hutech 30D, SBIG ST-402 autoguider
SV80S, TV102iis
Old camera lenses: 800mm f/5.6, 180mm f/3.4
AP900, Barndoor tracker
http://www.pbase.com/s58y
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Rankinstudio
sage
Reged: 04/05/08
Posts: 418
Loc: Salt Lake City, UT, Lake Powel...
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Maybe im not sure how that works exactly with the weights..but in the end does that give the same result as if you had median combined them all together?
Thanks for your help
David
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David Rankin
http://www.rankinstudio.com
Astro Gallery
Orion 254mm F4.7 (imaging scope)
Baader MPCC
Quickcam pro 9000 (guider, imager)
Canon Rebel XSi (self modified)
Atlas EQ-G (EQ MOD)
Canon 50mm F1.8 II Lens
Canon 28-200 F3.2 Lens
DSLR peltier cooler
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Mike Clemens
Post Laureate
Reged: 11/26/05
Posts: 4278
Loc: Wasilla, Alaska 61N
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I am not using Registar to combine, but I love it for alignment. It seems to do a better job than anything else.
I *align* groups of > 20 frames by doing it in batches of 20 (or so) I pick a master frame and then align each sub-group to it.
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historius apochromaticus
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Rankinstudio
sage
Reged: 04/05/08
Posts: 418
Loc: Salt Lake City, UT, Lake Powel...
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I think it does a wonderful job at alignment. The alignment process has to option to release image data so I can align an entire stack in one shot. Its the combining im having the issue with.
Mike, how do you combine them after they are aligned? I am wanting to use IRIS, but it throws out a 48bit incompatible error I guess do to registar splitting up the RGB into separate files?
Thanks
David
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David Rankin
http://www.rankinstudio.com
Astro Gallery
Orion 254mm F4.7 (imaging scope)
Baader MPCC
Quickcam pro 9000 (guider, imager)
Canon Rebel XSi (self modified)
Atlas EQ-G (EQ MOD)
Canon 50mm F1.8 II Lens
Canon 28-200 F3.2 Lens
DSLR peltier cooler
|
s58y
Postmaster
Reged: 12/12/04
Posts: 5509
Loc: Eastern NY
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Quote:
Maybe im not sure how that works exactly with the weights..but in the end does that give the same result as if you had median combined them all together?
I doubt that the result is identical, but I assume it's pretty close.
As for the weights -- IIRC, If I'm combining 41 subexposures in two groups of 21 and 20, I'd set the weight column to 21 and 20 for the two images for the final average combine step.
--------------------
Hutech 30D, SBIG ST-402 autoguider
SV80S, TV102iis
Old camera lenses: 800mm f/5.6, 180mm f/3.4
AP900, Barndoor tracker
http://www.pbase.com/s58y
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Rankinstudio
sage
Reged: 04/05/08
Posts: 418
Loc: Salt Lake City, UT, Lake Powel...
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Gotcha....Curious as to what program Mike is using to combine.
Thanks for your help.
--------------------
David Rankin
http://www.rankinstudio.com
Astro Gallery
Orion 254mm F4.7 (imaging scope)
Baader MPCC
Quickcam pro 9000 (guider, imager)
Canon Rebel XSi (self modified)
Atlas EQ-G (EQ MOD)
Canon 50mm F1.8 II Lens
Canon 28-200 F3.2 Lens
DSLR peltier cooler
|
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