In the case of the above shot it is just 25 X 6 second identical exposures. I load them into my computer. Synchronise the colour temp, then use some free software called Sequator to stack all the images into one tiff file with the stars aligned. Then I edit that tiff file to emphasize the starry portion of the sky. I picked up much of what I have learned so far through watching youtube videos by the late Alyn Wallace, (who we sadly lost last month), and Richard Tatti.
Being able to compare a single frame versus a 25 shot-stack, with the same framing, is really useful information. Next time I find myself in dark sky territory I will try my hand at it too.
Stunning mate!
Hi Thad the LED panels I have are Andoer W140RGB panels I bought on Ebay. They aren't super powerful, but with my high exposure times, and ISO's they don't need to throw a lot of light to be effective. When I use them for astrophotography they are often set at only one or two% output. For the illuminated bridge shot there were two panels each set to 100%. For the Milky Way core shots the first is unlit, and the second is lit by a camping lantern laying on the sand for a few of the frames.
