| I like comets.  Combined with an interesting foreground can be very cool.   
Starry sky autofocus is dynamite.  I think you need the E- m1 MkIII at a 
minimum though.  It bats 98% in accurate mode.  Better than I do on the Sonny.  
 DSS is perfect if no foreground like that.  You need a slightly shorter SS to 
prevent star trails.  Bump up the ISO a tad and stack 6-16 images.   I use the 
on board intervalometer. Take a separate long SS foreground  if necessary and 
stack the sky with DSS in "comet mode."  Not that hard.
https://www.photopills.com/calculators/spotstars
https://stargazerslounge.com/topic/359366-simple-comet-image-stacking-tutorial-dss/
Eyes on the sky, Mike
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