Cannon EOS M100

Cannon EOS M100

It's hard to focus this thing! Here's what works:

Focus

•  menu -> 1 -> Expo. simulation -- enable
•  menu -> 3 -> focus mode -- MF
•  menu -> 4 -> MF Peaking settings -- On High Red
•  -- Optional menu -> 5 -> Metering Mode -- spot
•  menu -> 7 -> Self Timer -- On 10 S
•  info (toggle till quick menu)
•  q (edit)
•  F5
•  ISO Max
•  Raw + L
•  Manual Focus
•  Take 4 second or more exposure and try and locate the brightest star
•  Try and center the star
•  Adjust the focus as best you can
•  Hit the zoom button on the bottom right
•  Adjust the focus as best you can

The peaking red highlight is amazingly helpful. You man not see the dim star at all, but the red highlight will show up on the star if it's focused. 

Exposure

Turn it up high to see things better in the display

Turn it as low as you can to get less noisy images

Goes up to 30, then bulb which will need some sort of remote access to make longer, so stick with maxing out at 30

Aperture 

Always put this at the lowest setting, as it lets in the most light that way