Why Exposure Compensation in Manual?

For a few months I have been shooting in M, Manual, usually action, birds. I want to control the DOF and freeze motion. Since the light may be changing I use auto ISO.

So I've wondered what's the use of my exposure compensation, (+/- ) button. So i assigned it to do another function.

Wow, a wrong choice. I follow Robin Wong to learn things about my Oly. Spoiler, basically I now use exposure compensation when in manual made with auto ISO. View this video to know why, 

I Learned Something New Today

It seems like I learn something each day I use my camera. Usually I use Mannual mode but today I decided to try Aperture priority mode. I was doing a shoot during an outdoor tent covered event starting slightly before golden hour to just before blue hour. Challenging lighting conditions.

I thought flash might be useful in back light situations. So I attached the flash and ass-u-med it was working. It wasn't but I didn't take time to figure it out. Well I found that flash will not fire when using electronic shutter. Lesson 1.

When using Manual mode the front dial adjusts Aperture and the rear  dial adjusts the shutter speed. However when using Aperture or Shutter priority the front dial adjusts exposure compensation while the rear dial adjust the Aperture or Shutter speed respectfully. Lesson 2 I don't need to press the stupid exposure comp button.

Auto ISO

This is my go to manual, ok semi auto, setting. But there are times that I choose a specific ISO as low as possible to meet the shooting situation.

Auto ISO

Additional information

   Auto ISO, 

   Backcountry Gallery

BUT if you want to take HDR or similar composite shots it's not for you.

Often it is recommend to use exposure compensation to make quick exposure changes. My choice is to use AUTO ISO. Oh but the grain the grain. Yeah? What of it? You're post processing your RAW data aren't you? Who will see your image? Phone, tablet, laptop screen.  That's a different post.