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Old Aug 14, 2006, 4:14 PM   #1
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I mostly shoot in "P" or "Av" modes on my 30D. I have yet to be able to successfully make exposure compensation workin these modes. I have tied exposure compensation setting and it shows that exposure compensation is setbut whenI take the picture and look at the exif info it says that "0" compensation was set.I have to switch to "M" to make back-lighted shots. I know I am missing something and there must be an easier way to do it.
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Old Aug 15, 2006, 11:12 AM   #2
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In P mode, camera selects the aperture and shutter. To see EV work, put your camera on Av or Tv mode. Let us say you selected Av mode. Set some aperture. Hald press shutter to see the shutter speed slected by the camera, Now use some under exposure, -EV. The shutter speed will go up. if you use +EV, shutter will slow down. Same thing would happen in case you selected Tv mode. Now aperture would change and you have kept the shutter speed constant.

Nothing happens in manual mode as you are in control. You select both shutter and aperture. if you need to use EV in manual mode, you need to change aperture or shutter or both yourself, depending on your needs.

You should read about some basics.
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Old Aug 15, 2006, 12:18 PM   #3
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I think I know most of the basics well...:-) But I didn't do a good job of asking the question. My Minolta and Nikon Film cameras had the ability to shift the "P" or "Av" programs to compensate for the lighting conditions. And the program shift was persistent (it will be there untilI change it back to normal). 30D is my first DSLR and first Canon; andI am having learning curve issue here with Canon set up.

Is there a way to shift creative programs in 30D to compensate for the lighting situations and make them persist until I change back to zero shift?
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Old Aug 21, 2006, 11:00 AM   #4
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I have a 10d but the expsure compensation should be the same.
Once you have pushed buton down half way and see your exposure use your thumb on the large wheel in back and you will see the exposure comp change:-)
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Old Aug 21, 2006, 11:45 AM   #5
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maybe you should tell what you are doing?

On my 30D, in Av mode to use exposure compensation, I just half press shutter and release and then use the back dial (within 4sec or you can keep shutter button half-pressed) to change exposure compensation. This remains in effect until you change it. Same thing happens when in tv or creative scene modes.

Do remember than on/off switch has to be in the top position for this to work.
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Old Aug 25, 2006, 10:54 AM   #6
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bobbyz wrote:
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Do remember than on/off switch has to be in the top position for this to work.
This is what I was doing wrong... I didn't have the power switch in the top position. I am new to Canon and still learning some of the nuances with the set up.

Thanks for the help...
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