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General / Re: Dark frames are not correctly subtracted
« Last post by Niall Saunders on Today at 08:13 »
Quote
The settings that seem to work best are when I shoot them in RGB

You should be shooting all your frames the same way you appear to ve shooting your Lights - i.e. in RGB mode. You should not deBayer until you have fully calibrated all of your (still in grey-scale) Lights - just before you Align and Combine the Calibrated Lights. You should only expect to see the beginnings of a colour image if you unlock the channels duriing STF.

Hope  this helps.
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Thanks Mike, that worked.
Larry
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General / Re: Dark frames are not correctly subtracted
« Last post by wvanreeven on Today at 05:01 »
It seems that you're doing the right thing. What exposure times do the flats have? How do you create the master flat? Do you use filters when imaging? If yes, do you take flats for those as well?

Lots of questions, I know :)
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General / Re: Dark frames are not correctly subtracted
« Last post by Bobinius on Today at 03:57 »
Well, the flats are still an issue with the CCD for me, I'm still trying to find the optimal way of taking them. I am using an Aurora flat field. The settings that seem to work best are when I shoot them in RGB (I have a colour camera 294C), same gain as the lights and the histogram is balanced at 50% for the green/blue channel, while the red is to the left (the flat field is predominantly blue).  I tried mono with the histogram in the middle (SharpCap uses 8 bit for those) using the same gain but the results on the final image are catastrophic and the vignetting/dust is actually increased.
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I am so sorry guys, yes Drizzle was on.. I thought it is off... so clumsy of me... Thank you everyone for help. It is now solving as usual.. :)
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i did not use drizzle integration, yet i tried solving by doubling my focal length
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Gallery / Re: M31 HaLRGB
« Last post by polare70 on Today at 01:24 »
Very beautiful with so many details!
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Have you used DrizzleIntegration or resampled the image? Your camera has a resolution of 4944X3284 pixels but in the capture that you have posted the status bar says 9888x6568.
If this is the case you have to multiply by two the focal length or divide by two the pixel size.
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General / Re: Dark frames are not correctly subtracted
« Last post by wvanreeven on Today at 00:12 »
Thanks. And sorry, but I meant flats. How do you shoot those?
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Image Processing Challenges / Re: Photometric color calibration issues
« Last post by naiteekv on 2019 April 23 22:41:26 »
I solved via image solver script. Still it is not able to solve the image. I have checked several times regarding parameters, they are cent percent correct. What am i missing? I use Platesolve 2 for my plate solving during capture and it is solving this image properly
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