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2026-10-09 APP 2.0.0-beta48 has been released !

This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.

2026-10-03 APP 2.0.0-beta47 has been released !

This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂

And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.

Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.

RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.

Mosaic Mismatch along only one seam

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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Hi

I've just downloaded a 30 day trial of APP and I have to say that I'm very impressed with the hassle free process of calibration, registration, stacking...and mosaic production.

I do, however, have one problem that I can't seem to work out:

I've been working on a mosaic of Simeis 147 and have so far acquired 6 out of my planned 12 panes using SGPro.

I've loaded all of the subs, along with calibration darks, flats and bias frames into APP using Sara's tutorial as a guide and APP does ok except on one vertical seam where it produces double stars (as per the stretched screen grab image attached). The affected seam is the left hand seam of the top right pane. All of the other seams are perfect - even the horizontal seam at the bottom of the same pane.

APP mismatch

I've tried this three times now, but always get the same result..on the same seam of the same pane.

Could anyone point me at a setting that I'm missing that could be the cause of this please?

Many thanks in advance.

Regards

Steve

 


This topic was modified 8 years ago by Mabula-Admin

   
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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Fixed it!

I had the Star Detection set at its default - when I increased it to 3000 (as stated in the mouse-over - Doh!) it worked.

Steve



   
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(@mabula-admin)
Universe Admin
Joined: 10 years ago
Posts: 5468
 
Posted by: Steve1962

Hi

I've just downloaded a 30 day trial of APP and I have to say that I'm very impressed with the hassle free process of calibration, registration, stacking...and mosaic production.

I do, however, have one problem that I can't seem to work out:

I've been working on a mosaic of Simeis 147 and have so far acquired 6 out of my planned 12 panes using SGPro.

I've loaded all of the subs, along with calibration darks, flats and bias frames into APP using Sara's tutorial as a guide and APP does ok except on one vertical seam where it produces double stars (as per the stretched screen grab image attached). The affected seam is the left hand seam of the top right pane. All of the other seams are perfect - even the horizontal seam at the bottom of the same pane.

APP mismatch

I've tried this three times now, but always get the same result..on the same seam of the same pane.

Could anyone point me at a setting that I'm missing that could be the cause of this please?

Many thanks in advance.

Regards

Steve

 

Hi Steve @steve1962,

Great project by the looks of it 😉

To further help you with the mosaic registration:

Indeed, increasing the amount of detected stars will help registration in the mosaic overlap areas.

Furthermore, disabling same camera and optics should help as well in addition to enabling dynamic distortion correction 😉

Do share your final result of this great object !

Cheers,

Mabula



   
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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Hi Mabula @mabula-admin

Thanks for your response - much appreciated.

Now that I've got that sorted, I'm very impressed with how seamlessly and easily APP has constructed this mosaic.

You asked to see the final result, but I'm afraid that a final result will be over a year away - so here's progress so far: six out of a planned twelve panes. Each pane is 6 x 30mins using an Atik 460ex through a 3nm Ha Chroma filter and a Tak FSQ106ED mounted on a 10u GM1000HPS. It was acquired using the Framing and Mosaic Wizard in SGPro.

This was calibrated, normalised, registered, integrated and assembled in APP with minor post processing in PI. This is only a scaled jpeg - the whole image is over 60Mb...so far!

Hope you like it

Linear 456789 Mosaic 6 panes each

Regards

Steve

Steve

 


This post was modified 8 years ago 3 times by Steve1962

   
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(@1cm69)
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Joined: 9 years ago
Posts: 131
 
Posted by: Steve1962

Hi Mabula @mabula-admin

Thanks for your response - much appreciated.

Now that I've got that sorted, I'm very impressed with how seamlessly and easily APP has constructed this mosaic.

You asked to see the final result, but I'm afraid that a final result will be over a year away - so here's progress so far: six out of a planned twelve panes. Each pane is 6 x 30mins using an Atik 460ex through a 3nm Ha Chroma filter and a Tak FSQ106ED mounted on a 10u GM1000HPS. It was acquired using the Framing and Mosaic Wizard in SGPro.

This was calibrated, normalised, registered, integrated and assembled in APP with minor post processing in PI. This is only a scaled jpeg - the whole image is over 60Mb...so far!

Hope you like it

Linear 456789 Mosaic 6 panes each

Regards

Steve

Steve

 

Fantastic result so far, really looking forward to the end product 👍

Kirk 



   
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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Thanks Kirk!

I’m pleased you think it’s ok.

It’s a really slow business - the weather here is rubbish - and the target is past its best for this season so it looks like another year before I can add to it. ☹️

Steve



   
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(@1cm69)
Neutron Star
Joined: 9 years ago
Posts: 131
 

Hi Steve,

all good things come to those who wait, so they say 😉 where's 'here' by the way, not the UK by any chance?

Kirk



   
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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Yup - I’m in Somerset. 💨💨🌧🌧🌧⛈⛈🌨🌨🌬🌬🌬💨Where are you??

Steve


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(@1cm69)
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Not a million miles away then, I’m in North Devon 

Kirk



   
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(@jonesdee)
Red Giant
Joined: 9 years ago
Posts: 40
 

Very nice indeed Steve !

Sharing your weather frustrations here in Nth Wiltshire  

Dave



   
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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Thanks Dave.

There’s a few of us under this perpetual cloud - maybe we should form a group of FAPS? (Frustrated Astro Photographers) 🤪



   
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(@steve1962)
White Dwarf
Joined: 8 years ago
Posts: 8
Topic starter  

Thanks Dave.

There’s a few of us under this perpetual cloud - maybe we should form a group of FAPS? (Frustrated Astro Photographers) 🤪



   
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(@jonesdee)
Red Giant
Joined: 9 years ago
Posts: 40
 

I'm tempted to open a pub called 'The Observatory' . . . 🙂



   
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