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   Dr. Alexandre Santerne 🌍 (alexsanterne@astrodon.social)'s status on Sunday, 18-Dec-2022 23:45:38 JST Dr. Alexandre Santerne 🌍

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   The way I proceed is the following:
   1- set up the camera during twilight (before it is dark)
   2- point you camera the way you like making sure your camera is perfectly horizontal
   3- do the focus (can use auto-focus since it's still bright)
   4- put the camera in mode BULB
   5- turn OFF the auto-focus and do not touch anymore the lens focus.
   6- set the camera sensitivity (up to 6400ISO with my 5DIII)
   7- set up the intervalometer
   8- come back when it's dark
   9- start the sequence
   10- wait for long