Exposure Compensation
Dec 14, 2013 05:59:13 #
If I am shooting with an aperture of 3.5 and then add +1 to my exposure compensation ... will that actually change the camera aperture setting, which would result in a DOF change or is the brightening done in camera without changing DOF ...
Dec 14, 2013 06:11:22 #
amehta
Loc: Boston
DEBJENROB wrote:
If I am shooting with an aperture of 3.5 and then add +1 to my exposure compensation ... will that actually change the camera aperture setting, which would result in a DOF change or is the brightening done in camera without changing DOF ...
Are you in aperture priority (A/Av), shutter priority (S/Tv), or program mode (P)? If you are an A, then the aperture you set will not change, but the shutter speed will. If you are in S, then the aperture will change while the shutter speed stays the same. If you are in P, then both will change.
Exposure compensation tells the camera, "I know you metered the image, I think you're off, so use an adjusted metering value". The camera then sets the exposure values (aperture, shutter speed, and ISO if auto-ISO), as it did before, just with the adjusted value.
Dec 14, 2013 06:53:04 #
Depends on the camera and what "Mode" you have it set to.
The camera would be changing one of 3 things: A- Aperture, B- Shutter Speed, C- ISO setting.
The camera would be changing one of 3 things: A- Aperture, B- Shutter Speed, C- ISO setting.
Dec 15, 2013 08:09:39 #
amehta wrote:
Are you in aperture priority (A/Av), shutter prior... (show quote)
Good explanation, thank you
Dec 15, 2013 23:25:11 #
DEBJENROB wrote:
If I am shooting with an aperture of 3.5 and then add +1 to my exposure compensation ... will that actually change the camera aperture setting, which would result in a DOF change or is the brightening done in camera without changing DOF ...
The aperture will not change. It is done in the computer of the camera.
Dec 15, 2013 23:32:14 #
cthahn wrote:
The aperture will not change. It is done in the computer of the camera.
Sorry CT, but you are not correct. See Amehta's explanation, for the correct sequence, of what will change.
SS
Dec 16, 2013 01:37:03 #
DEBJENROB wrote:
If I am shooting with an aperture of 3.5 and then add +1 to my exposure compensation ... will that actually change the camera aperture setting, which would result in a DOF change or is the brightening done in camera without changing DOF ...
Have you tried it?
You can do an experiment; pick a scene where you can control the lighting. Say, an apple or two and something a totally different color on your dining room table.
Set your camera to auto and take a picture. Then go to whichever mode you set the aperture at 3.5, then shoot it again.
Adjust the exposure compensation value up 1 EV and shoot. Then re-set it to +2 EV and shoot. Do the same for +3. Then go to -1 EV, _2 EV et cetera. When you are done, compare the images and the EXIF data for each shot.
The images SHOULD be correspondingly lighter or darker and the camera should tell you exactly what it did for each shot.
Hope this helps, and
GOOD LUCK!
Dec 16, 2013 06:12:04 #
CHOLLY wrote:
Have you tried it? br br You can do an experiment... (show quote)
Thanks to all ....I figured it out
Dec 16, 2013 09:38:57 #
Dec 19, 2013 07:32:11 #
amehta wrote:
Are you in aperture priority (A/Av), shutter prior... (show quote)
What if you are shooting in Manual?
Dec 19, 2013 07:56:15 #
twillsol wrote:
What if you are shooting in Manual?
If you are shooting in full Manual mode then you are doing your own exposure comp. by setting everything manually.
Speaking for Canon cameras which I use, the EC will not even operate when in M mode.
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