Mar 28 2026 APP 2.0.0-beta40 will be released in 7 days.
It did take a long time to have the work finished on this and it will have a major performance boost of 30-50% over 2.0.0-beta39 from calibration to integration. We extensively optimized many critical parts of APP. All has been tested to guarantee correct optimizations. Drizzle and image resampling is much faster for instance, those modules have been completely rewritten. Much less memory usage. LNC 2.0 will be released which works much better and faster than LNC in it's current state. And more, all will be added to the release notes in the coming weeks...
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.
Can you advise what the standard option I should select when loading images taken on my DLSR with an HA filter. DO I choose the RGB option when I load my lights or the HA option. TIA
@gilgm Hi Mark. You need to choose RGB because the images taken with your DSLR are color images. APP will then debayer the images for you. If you are interested in a mono Ha image only then you can extract the R channel from the resulting RGB integration result. You can do this in APP of using other software.
Thanks Wouter. So for my HA filter I have taken Darks , Flats , Bias . Once I’ve integrated the lights I want to add the final HA shot to my RGb shots - same camera focal length etc . So is it just a question of loading the 2 final calibrated shots and integrating these . Thanks .
So is it just a question of loading the 2 final calibrated shots and integrating these .
Be aware that, if you want to do this in APP, you will need to split the two RGB results into their color channels.
To do so you can load the two integration results as lights into APP and then go to tab 2, select "split channels" and then click "save (calibrated) light frames". This will give you 6 files (one R, one G and one B image for each integration result) and you can delete the G and B files of the Ha image. Then you can go to tab 9 (Tools) and select "combine RGB". There you can select the "HaRGB 1" or "HaRGB 2" formula and then load the four frames. Just make sure that, when you load the R frame of the Ha image, you mark it as Ha. If you switch from either "HaRGB 1" or "HaRGB 2" to the other then don't forget to click the "new formula" button otherwise you won't see a difference.
Such a quick reply - many thanks for the advice. Great forum. Thanks again.
Hi this is frustrating . I took a 4 pane mosaic with my clip Ha filter on my canon 600 Dlsr . 20 lights per pane, plus flats , flat darks and bias. I calibrated ok. Set parameters to create a mosaic. All steps ‘seem’ to work but the final integrated frame is just black even at maximum stretch. Individual light frames can be viewed ok as can master calibration frames. I must be doing something wrong. On integration it’s using 85gb HD for processing- which I have 120gb free.
Any ideas ?
Set parameters to create a mosaic.
What parameters did you set exactly?
Calibration -
AUTO
Register -
Quadtilateral
Scale Start 1
Scale Stop 8
Dynamic Distribution ticked
Same Camera and Optics ticked
Reg Mode - Mosaic
Normalisation
Default settings
Integrate
LNC - 1
Iterations 3
Enable MBB
Kappa Low - 6
Kappa High -3
@gilgm For mosaics setting the mode to advanced in tab 5 is essential. Also first try without changing the defaults in tab 6. If that goes well, we can start working with those settings.
meant to say that halfway through there was a meridian flip so nearly half of each pane will be flipped .
@gilgm That doesn’t matter since the whole image train flips so the images will be oriented the same.
Hi AM still having problems registering a 4 panel mosaic. 2 will register , 2 will not. Have integrated and stretched and processed with LP correction and saved as TIFFs.
Co-ordintaes used via Telescpious and copied into plan Mode on Asiairpro. All 4 panes executed and Integrated ok with Flats, Darks , Bias and Master Dark Flat.
Using as Modded Canon 600D
Tab 3 increased Analyse Star Count
Tab 4. Start - 7 , Scale stop 12. Flip descriptors - yes. Dynamic distortion Yes. Same Camera Optics - No
Tab 5 Set to Advanced
Tab 6 - 1st Degree LNC . Iterations -3. Enable MBB - 25% (Overlap on panes is 20%). Set scale to 0.3 - just to test.
It eventually finished with no output file - just a black screen.
Very frustrating as with the FL scope of 780mm - I need to use Mosaics, but just can't get it to work. Checked the final Panes against Telscopious and look the same ?
Are you using the files from stretched TIFF's? I'd advice to start with the raw data, make that into the panels, save them as fits (unstretched) and then make the mosaic. When the mosaic is created, only then I'd save it as TIFF and do other processing if needed.
I’ve used:
1. Non stretched Fits for each panel.
2. Stretched Fits for each panel.
As above but saved as Tiffs . Tried to mosaic for all 4 with no success.
I can have a closer look if you want? You can upload like 10 lights per panel and the calibration files to our server:
Go to https://upload.astropixelprocessor.com and for the username and password, use: upload
Create a directory named “gilgm-mosaicIssue” and upload in there. Thank you!
