skogpingvin
IMGP4350_4151_MoonComposite2
Lunar eclipse, 31 January 2018. Clearly this is composite. Just prior to first contact I took a series of 1/1000s ISO100 shots of the full white disk and chose the sharpest. Then later at around mid-totality I took a large number of 2s exposures, hoping to use a stacker to sharpen them up. It didn't work, because I used a tripod and not a tracked polar mount, and in the 2s exposures there was sufficient movement to blur the details. So I used the best 2s red exposure as a background layer and the sharp 1/1000s exposure as a luminosity layer (further sharpened a small amount with a high pass filter). I had to rotate the top layer to match as well - the most fiddly bit of the whole process!
IMGP4350_4151_MoonComposite2
Lunar eclipse, 31 January 2018. Clearly this is composite. Just prior to first contact I took a series of 1/1000s ISO100 shots of the full white disk and chose the sharpest. Then later at around mid-totality I took a large number of 2s exposures, hoping to use a stacker to sharpen them up. It didn't work, because I used a tripod and not a tracked polar mount, and in the 2s exposures there was sufficient movement to blur the details. So I used the best 2s red exposure as a background layer and the sharp 1/1000s exposure as a luminosity layer (further sharpened a small amount with a high pass filter). I had to rotate the top layer to match as well - the most fiddly bit of the whole process!