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June 24 2026 APP 2.0.0-beta46 has been released !

Improved internal memory configuration (lower ! memory usage), fixed beta45 startup issue, fixed Set Save Directory & 2-panel mosaics.

May 27 2026 APP 2.0.0-beta45 has been released !

Fully Multi-Threaded LNC, many improvements for the registration engine, platform upgrade, and further tuning of internal memory consumption and memory release back to OS.

Apr 14 2026: Google Pay, Apple Pay & WeChat Pay added as payment options

Update on the 2.0.0 release & the full manual

We are getting close to the 2.0.0 stable release and the full manual. The manual will soon become available on the website and also in PDF format. Both versions will be identical and once released, will start to follow the APP release cycle and thus will stay up-to-date to the latest APP version.

Once 2.0.0 is released, the price for APP will increase. Owner's license holders will not need to pay an upgrade fee to use 2.0.0, neither do Renter's license holders.

 

Grainy/Dirty Image

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(@rockinrod)
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Joined: 6 years ago
Posts: 130
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Let's see if I can explain this...

I just gathered 8 hours of data on IC443 the Jellyfish Nebula, finished last night. There was no moon, and I'm in a Bortle 5 area, very dark. I did 98X300 seconds subs using my best Narrowband filter the Optolong L-eXtreme.

I used my Meade Series 6000 70mm f.5.0 Quadruplet APO, 350mm FL with an ASI294MC Pro cooled camera set at -17C

98X300 Sec Subs--26Darks--60 Flats--60 Bias

Getting back a lot of grain and trash on it. Very unusual for this to happen to me with this much data. 

My question, is there a tool in APP which will eliminate this grain and garbage and to smooth up my sky background...

I did the Combine RGB on this HA/OIII/SII....I've been doing astrophotography for about three years now using both a Canon and ZWO cameras, and I didn't do anything different in my set up than normal. Just cannot seem to be rid of all the grain and garbage on this particular object...Though there may be a way to clean this up...

I'm doing more darks too BTW, maybe this is the problem...I will match the darks to the 98 lights.

Thanks,

 

Rod

 

Here's the HA-Extraction, see all the trash...Can't get rid of it...

Screen Shot 2021 02 04 at 10.03.00 AM
IC443

 

 


This topic was modified 5 years ago 3 times by Rodney Bell

   
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(@rockinrod)
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Joined: 6 years ago
Posts: 130
Topic starter  

Okay just an update....I added 65 more dark frames to the 93X300 Sec subframes, this also includes 60 Bias and Flats...

This screen shot is just the HA Channel...I'm pleased with this...That tells me i needed more dark frames to hide some of the garbage in the background...

Am I correct in assuming this? I'm still processing the OIII and then the SII. Then I will combine the channels and see how it all comes out...

Or maybe my answer is, "This is just one of these dimmer targets which requires a lot more integration time, and more data"...

Your thoughts please?

IC443

 

 

Rod


This post was modified 5 years ago by Rodney Bell

   
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(@rockinrod)
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Joined: 6 years ago
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Topic starter  

Think I figured it out...Added 65 more dark frames, and changed a setting in one of the boxes when you add the Lights and Calibration frames in the (1) Load tab...

IC443 PS 2 Signed copy

 



   
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(@wvreeven)
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Joined: 8 years ago
Posts: 2134
 

@rockinrod sorry for not having replied and good job on finding the cause yourself. Out of curiosity, which setting made the difference?



   
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(@rockinrod)
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Joined: 6 years ago
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@wvreeven

The first step, in Tab (1) Load, when selecting the calibration frames there's a box at the top which says, "All Channels"...

I have not been selecting this, so I thought I would try that...So after adding a total of 90 dark frames and selecting All Channels, I ran everything thru again, and it came out good...So from now on when I see this on the calibration frames I will select All Channels. My thought is, if you don't, the darks will not be applied across the board.

I did:

93X300 Sec Subs--90 Darks--60 Bias and Flat frames

 

That sound reasonable?

 

Rod


This post was modified 5 years ago by Rodney Bell

   
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(@wvreeven)
Quasar
Joined: 8 years ago
Posts: 2134
 

@rockinrod Yes that makes sense if you are processing images from multiple channels, like R, G and B. If you do not apply the darks to all channels then the ones that they don't get applied to end up without being calibrated.



   
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