My second (and first successful) try of the orion nebula. Any advice for editing out the noise and these stripes? What are these?
Camera: Panasonic Lumix G85 Lens: H-FSA100300 (100-300mm f4-5.6) Settings: f6.4, ISO 6400, 5"
1020 pics at 5s each + calibration frames
Total exposure: 85 minutes / 1.4 hours
The stripes are called walking noise/ pattern and often show up when not using a tracking mount and not using dithering.
Because not every pixel of your camera captures signal exactly equally bright you‘ll see this difference along the movement of the sky as it gets accumulated with every subframe. The only way to get rid of it is to vary the pixels for each part of the image after each exposure. This can be done by moving the camera slightly after each shot. This process is called dithering.
With good calibration frames the pattern can by minimized very slightly. Other than that the only real option for processing I can think of is to hide the pattern by not stretching the dark ares too much.
Other than that great image!
I did use a tracking mount, but of course I didn‘t move the camera. I also used darks, biases and flats for calibration.
I think I‘ll just remove this in post as best as I can in the future.