UPDATE FROM MABULA
I have had a very rough 2 months unfortunately health wise. I was struck 3x in a row with bacterial infections. The second infection occurred  after a routine hospital checkup and I became very sick. I had to rest and take a lot of antibiotics. Once I was recovering and restarting work 1 month ago, I again became sick. The infection was not yet gone, so even more antibiotics and rest was needed. Needless to say, it took a lot of my energy and I needed a lot of rest.
Finally, the infection is really gone and my energy is coming back step-by-step now and I have started work again. I am terribly sorry to have kept you waiting for support. I will address all outstanding questions and e-mails step-by step and will be on the forum daily from today.
APP 2.0.0-beta47 will come soon as well, a lot of work was already completed before I became very ill, so the release is also nearly ready for you. Beta47 will be much faster actually. Many workflows will be more than 2x faster, mosaics can even be 10x faster than before because registration really received a major boost... all compared to beta46. Â Before I release it, I will make sure that everything is working properly and then I will release it.
So I heavily weighted my last two sessions to luminance, and it occurs to me that if I bin the R, G, and B, I'll get rid of some chrominance noise without losing any detail. But for the life of me, I can't figure out how to do that in APP. I see this helpful thread, but that looks as if it would actually reduce the image size so that it no longer registers with the L channel -- I want to leave the L channel alone. Do I have that correct? Or is there another way to accomplish this?
You can still register to the luminance channel, APP will automatically change the resolution to match.
Ah, OK, thanks Vincent! But will APP upscale the "binned" (downscaled with interpolation) RGB data, or downscale the luminance to match? What I want is a full-scale luminance image with the lower-resolution RGB informing each pixel's color.
I think it automatically goes for the bin 1 as that is usually also the best quality, so it should upscale then.
COOL! Well, I will definitely have to try that. For the particular image I was working on, the question is mostly moot -- I just went out and doubled my integration time :-). But I'll certainly want to have that technique in my toolbox. BTW I got all bound up in this Markarian's Chain image and left the Leo's Triplet one by the wayside (the one whose color balance we were discussing in another thread). I'll get back on that and resume that chain. Thanks again for your help with that, and this.
No worries, always here to assist when possible. 😉