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Old Mar 19, 2007, 9:03 AM   #1
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I was wondering when using a flash "430ex" will the metering on the camera ,meter based on me using the flash or does it meter for the lightening?

what i am trying to say is if i have my flash on and i am in the aperature priority mode, and the meter reading is showing me i need 2.8 , at a speed of 1/40 . i shoot the image doesn't look right its either way to dark or (like not enough light hit the sensor) Sometimes it will be to bright and wash out the subject.



i thought that the camera would know that a flash was being used and sync to it so that the metering is correct?



seems like i have to shoot and then view the histogram and then refire to get it correct. Am i missing something? I hopei explained this so its understandable. Thanks Bill B
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Old Mar 19, 2007, 9:15 AM   #2
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I am not too familiar with flash and fill flash. But I do know that when the camera is in Av mode, it will meter for the background or entire scene, and only using the flash as a fill light.

I think what you are expecting it to do is adjust the flash for use as the main light, which would be enabled in the P mode.

I am sure others will clarify, but you may also want to try adjusting your FEC (Flash Exposure Compensation) when using it in Av mode.
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Old Mar 19, 2007, 1:38 PM   #3
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Buhammot wrote:
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I am not too familiar with flash and fill flash. But I do know that when the camera is in Av mode, it will meter for the background or entire scene, and only using the flash as a fill light.
That's correct - In most all modes the camera will meter for the ambient light and then fill-in with the flash

-> The best way to use Auto flash is actually to put the camera on manual - The flash will still be automatically exposed from the camera metering but you can then control the background via the the -2..-1..v..+1..+2 EV scale on the bottom of the camera - Moving left of the scale (with shutter/aperture) will darken the background while the center is perfect exposure (without flash)

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