mrodgers
No longer a newbie, moving up!
- Joined
- Dec 13, 2007
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- 1,662
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Not arguing here, just discussing.... I look at it like this, Av mode, you've already preselected the aperture and ISO you want, f/3.5 and 100 for example. The camera adjusts the shutter according to your exposure compensation, as you said, -1/3 and where you meter the scene.I disagree that using exposure compensation in Av or Tv is the same as using manual mode. The difference is that exposure compensation is relative: I know how my camera meters (due to much experience), and I know that (for example) in the current lighting situation, my camera will choose an exposure which is about 1/3 stop brighter than I want. So it's easy for me to dial in a -1/3 compensation.
Were I shooting entirely in a manual exposure mode, I'd have to dial in shutter speed and aperture (and ISO, I suppose) and hope that I had metered it correctly on my own. I don't want to bother taking the time to figure that out and run that risk.
Manual is exactly the same. You have the aperture and ISO you want same as in Av, f/3.5 and 100. You should have it set. You meter the scene exactly the same as you would in Av, only you are flicking a dial (button in my case) to quickly dial in the shutter that gives you -1/3 on the meter display.
You're not dialing in aperture and ISO by going manual, you are presetting it just as you would in Av. It seems to be the same thing to me, only you are just adding a quick flick to the shutter setting to get the meter reading that your camera would give you in Av with the exp. compensation you choose.