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Questions relating to the use of exposure compensation

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20
votes
5answers
2k views

What is exposure compensation?

What does exposure compensation do? If I take a photo with a given shutter speed, aperature, and ISO, and then take the same shot with +1EV or -1EV, what is actually happening? Is this just a gain ...
29
votes
6answers
9k views

How do I use spot metering?

What's the right way to use spot metering? Is it better to use in manual mode than one of the priority modes? There's a question about when to use spot metering, but none that serves as a tutorial to ...
0
votes
2answers
367 views

Can I use exposure compensation in manual mode with auto ISO on a Canon DSLR?

When I use the auto ISO setting in manual mode I can not find a way to dial in the exposure compensation on my Canon 550D. Is this possible at all? I encountered this in a situation where I wanted to ...
4
votes
3answers
223 views

When should I use exposure compensation?

When should I use exposure compensation, rather than ISO, shutter speed or aperture?
4
votes
5answers
2k views

What's the difference between exposure and shutter speed?

Is there a difference between exposure and shutter speed, or are the terms interchangeable? I read that "If you use a quick shutter speed, you can just raise the exposure to compensate." Is this ...
1
vote
3answers
830 views

Should I use Active D-Lighting when shooting Raw?

I understand (ref) that I can do my own post processing to get the same effect that Active D-Lighting gives. But does the in-camera ADL get applied to the raw image data or is it only done to the ...
12
votes
4answers
4k views

How should I learn to understand Canon's metering?

Spot metering is my preferred metering mode on the Canon 50D. This allows me to nail the exposure first time -- 99% of the time -- by using AE-lock on my subject and applying the desired amount of ...
5
votes
5answers
840 views

When I change the EV compensation, how will that affect my aperture, shutter speed, or ISO?

Let say that we have the following values, as an example: Shutter speed: 1/40 Aperture: 2 ISO: 1000 How can I get the EV number for this exposure, extract (or add) an EV value (0.33, 0.66 etc.) and ...
6
votes
2answers
786 views

What is the relation between shutter speed and exposure compensation in aperture priority?

I was using a manual focus lens with canon 600D and notice something in aperture priority mode. When I was applying the exposure compensation of -2EV, I had a shutter speed of 1/20 sec and when the ...
5
votes
8answers
4k views

Is there an iPhone photo app with exposure compensation?

I'm looking for an iPhone app that features exposure compensation, any suggestions?
3
votes
4answers
561 views

How critical is it to expose raw images correctly?

I have been thinking about the Zone System and its goal of maximising image quality given the limitations of film sensitivity and the necessity to choose specific developing parameters. Clearly you ...
2
votes
3answers
948 views

Should I use “exposure compensation” setting while shooting?

Should this be done using image processing software like Photoshop or with the camera's built–in function? It seems to me a program like Photoshop could use much better algorithm than what is ...
1
vote
4answers
123 views

Why does flash exposure compensation of 4EV have such an unnoticeable effect?

I took two photos, one with flash exposure compensation set to -2EV: and the other with +2EV: I find a minor, almost unnoticeable difference between these two photos. But there's a difference ...