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.
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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.
Hello
I'm starting to use a color camera with a set of two dual band filters :
- classical Halpha/OIII
- Hbeta/sulfur
... so that I end up with a total of four channels
I just wander what could be a "simple" workflow to manage to combine 3 or 4 channels to reconstruct a color image.
I think I have first to extract single channels images from dual elementary images eg :
- session 1 Halpha (red) and OIII (green) then
- session 2 Hbeta (blue) and SII (deep red)
Then ?...
In particular, how do I get session1 and session 2 images registered ?
Hi @alpheratz06 !
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I just have a duo-narrowband Ha-OIII but I combine those channels to my RGB images by using APPs RGB combine tool. That shouldn't be very different from combining Ha-OIII with Hb-SII channels.
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But first you have to extract those channels from your lights. A simple (and maybe right?) way to do this, might be to integrate every single channel. You do that in APPs 00-Tab (where you set raw debayer algorithm). There is an option to choose "Ha-OIII only Ha" and "Ha-OIII only OIII". There is a topic in this forum mabula suggested to use this option on Hb-SII too (OIII=Hb, Ha=SII), until he implements an extra option, but as far as I can remember it simply does very much the same.
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Once you extracted/integrated every single of those four channels, you go back and load those four integrated frames as lights and hit register again. Save those registered frames.
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You can then use your registered frames in the RGB combine tool. There should be a HaHbSO formula or you can simply mix channels on your own.
