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. Before I release it, I will make sure that everything is working properly and then I will release it.
I don't think this would work...(combining different image scales and pixel resolutions)
So, I've got this narrowband image shot on my tiny-sensored, high-pixel-count 183MM. I would like to shoot RGB stars and replace the whacko stars in the narrowband image.
The cropping is also actually a little too tight, so what I would really like to do is center the target and shoot the RGB frames with my APS-C DLSR. Bigger sensor, wider FOV. Register with NB with the RGB, save registered frames, run the NB through star elimination, integrate with MBB and LNC, boom, Astronomy Picture of The Day. (No, not really. I can dream.)
But I don't think APP will upscale the 16-megapixel APS-C image to match the 20-megapixel narrowband one when I register, or alternatively downscale the 20-MP one. Is that correct? (The respective image scales are about 0.6"/pixel and 0.3"/pixel). It would be really nice to just shoot OSC with a bigger sensor and have APP "make it so", but I suspect what I will wind up doing is either accept the too-tight cropping, or spend a lot of dark sky time on shooting a mosaic (and of course with all three broadband filters for each panel). I suppose I could also manually up- or down-scale one of the images to exactly correspond to the scale of the other -- assuming I could get the math right -- and import the result into APP for registration and continue that way.
If the DSLR thing could work, please let me know!
This topic was modified 3 years ago 2 times by Rick Wayne
APP is known to be able to register data that has a factor of 8x difference in imaging scale... your 0,6"/pixel with 0,3"/pixel is only a factor of 2, so I would think APP will do it without hesitation or problems 😉
So no need to do anything yourself. load the RGB data from your APS-c DSL and the 183mm data at the same time with their calibration data and set the registration engine to use dynamic distortion correction and disable same camera and optics, then it should work 🙂
Last year I made a mosaic of Orion + Flame and Horsehead. The combination was made with two different cameras, two different telescopes and a stupid overlap as the mosaic wasn't planned but more of a "hmm.. this could maybe work" thing.
The image consist of: Two sessions with an 80ED and a Canon EOS 5DMKII One session with an 80ED and a ha-modified Canon 700d (T5i) One session with a 2-panel mosaic using a Sharpstar 61EDPH and a ha-modified 700d (T5i)
Hey, that's brilliant! Thanks, nice to know not only that it should work but that it does.
I think I still might have to do a little fast shuffle to have the RGB image replace the stars in the narrowband one. But I could either register first, do star removal on the NB FITS, and then integrate normally.
Last year I made a mosaic of Orion + Flame and Horsehead. The combination was made with two different cameras, two different telescopes and a stupid overlap as the mosaic wasn't planned but more of a "hmm.. this could maybe work" thing.
The image consist of: Two sessions with an 80ED and a Canon EOS 5DMKII One session with an 80ED and a ha-modified Canon 700d (T5i) One session with a 2-panel mosaic using a Sharpstar 61EDPH and a ha-modified 700d (T5i)
The rejection-map was almost too funny:
Thanks @wheeljack for sharing this, that indeed looks funny 😉
@rickwayne, let us know if it works or need help 😉
