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Exposure Compensation vs manual control?
I do not understand that what is the benefit of EV compensation values when one is using a manual mode in a camera. manual mode allows one to alter the aperture size and shutter speed to properly get an exposed picture. Why would one need to use exposure compensation in such cases when everything can be properly exposed via altering shutter speed and aperture?..

Comments (13)

Exposure compensation is for modes such as auto, P, Tv, and Av, where choices of variables not fixed by user, such as shutter speed and/or aperture are left to the camera's decision to achieve proper exposure. In those modes when user specifies additional compensation, the camera makes decisions on what to do with the variables at it's disposal to achieve desired exposure compensation..

Since in manual mode all decisions are made by the user, there's no such thing as "exposure" compensation" in manual mode...

Comment #1

If you override the meter reading, you are performing exposure compensation..

When in manual exposure mode, this means using a wider/smaller aperture or a slower/faster shutter speed than what the meter suggests. Obviously you do not need an exposure compensation button for that - it is there for times when you are in an automatic or semi-automatic mode -, but it is still exposure compensation.pbase Supporter..

Comment #2

LightBug wrote:.

Since in manual mode all decisions are made by the user, there's nosuch thing as "exposure" compensation" in manual mode..

There is such a thing as exposure compensation in manual mode, and there are times when it can be used!.

However, it is just as easy to manually set over or under exposure by changing the f:stop or shutter speed, but if you have the exposure compensation adjusted to over or under expose, your camera meter will reflect those changes in the meter reading..

J. D.Colorful Colorado.

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Remember.always keep the box and everything that came in it!..

Comment #3

MusicDoctorDJ wrote:.

LightBug wrote:.

Since in manual mode all decisions are made by the user, there's nosuch thing as "exposure" compensation" in manual mode..

There is such a thing as exposure compensation in manual mode, andthere are times when it can be used!.

So how would you go about doing exposure compensation in manual mode?.

In Av mode on my K100D, pressing Ev button shows me the exposurecompensation value. When I switch to M mode, pressing Ev button allowsme to change aperture. So in M mode, the camera doesn'tseem to be compensating anything that the user is setting..

However, it is just as easy to manually set over or under exposure bychanging the f:stop or shutter speed, but if you have the exposurecompensation adjusted to over or under expose, your camera meter willreflect those changes in the meter reading...

Comment #4

Your camera.not all cameras..

J. D.Colorful Colorado.

Remember.always keep the box and everything that came in it!..

Comment #5

So what's your camera, and how do you do it?..

Comment #6

LightBug wrote:.

So what's your camera, and how do you do it?.

My DSLR is an Oly E-510, and I don't use exposure compensation in manual as I'm an old school manual film shooter..

However, DSLR's that have a separate dial for shutter speed and lens opening CAN use exposure compensation in manual exposure mode..

Even my Panasonic FZ10 and FZ50 both allow exposure comepensation to work in manual exposure..

J. D.Colorful Colorado.

Remember.always keep the box and everything that came in it!..

Comment #7

From what you describe, in manual mode, you manually set shutter speed and aperture. So where does the Ev compensation value come into play?.

The original poster's confusion was about Ev compensation value'susefulness in manual mode. From my experience, Ev compensationvalue does not exist in manual mode..

If Ev value exists for your camera in manual mode, that would be something newto me, and it would seem to add an unnecessary camera controlled variable inmanual mode...

Comment #8

-Speaking for my A610, the EC button is active for that purpose only in P, Av, and Tv modes. It will not work at all in Auto..

In Manual it is the means to toggle between the aperture and shutter settings as well as the location of the focusing screen when in Flexizone.Regards,Hank.

OBJECTS IN MIRROR ARE CLOSER THAN THEY APPEAR..

Comment #9

LightBug wrote:.

From what you describe, in manual mode, you manually set shutterspeed and aperture. So where does the Ev compensation value comeinto play?.

If one can use EV compensation in MaNUAL mode then I assume the camera is allowing the user to set/adjust the zero point for the meter..

Happened to read this just last night:.

" ...Exposure compensation is used with the automatic metering modes,however & with most Nikon cameras, dialing exposure comp in manualexposure mode will bias the meter. With Canon, you cant dial exposurecompensation in manual exposure mode. ".

Quote above from here:.

Http://planetneil.com/.../flash-photography-techniques/8-flash-exposure-comp/.

The original poster's confusion was about Ev compensation value'susefulness in manual mode. From my experience, Ev compensationvalue does not exist in manual mode..

Just because something works one way in one brand of camera doesn't "automatically mean" it'll be true for another brand..

BTW I shoot Canon and don't have "EV Compensation" in Manual Mode.

If Ev value exists for your camera in manual mode, that would besomething new to me, and it would seem to add an unnecessary cameracontrolled variable in manual mode..

Trying to think of a scenario where it would be useful:.

What if one's camera tended to slightly underexpose - say to preserve the highlights - in a number of situations. To compensate, one would set the +EV by some amount - eg. +1/3 or +2/3..

But now one would no longer have the full 2-stop range (on a meter that shows -2..-1..0..+1..+2) above the zero point for adjusting the exposure for a particularly tricky scene. If one wanted to go 2-stops over what's "normal" for one's camera, would have to figure it out in one's head, instead of being able to just quickly turn the jog wheel til meter reads +2..

Though on my Canon 400D in Auto Exposure Bracketing - to test, set EV to +1: the scale in Menu set-up shifts to the right from.

-2..-1...0..+1..+2 to.

-1..0..+1..+2..+3.

Even though the scale in the viewfinder is fixed at -2..-1..0..+1..+2.

Good Day,Roonal.

'Money doesn't buy happiness, but it makes for an extravagant depression' by golf tournament sportscaster..

Comment #10

Thanks for the interesting information on Nikon cameras. I stand corrected that there are "some" cameras like the Nikons that do allow for exposure compensation in manual mode. The OP needs to figure out if that applies to his/her camera...

Comment #11

I re-worded one section of my post - I was on the right track, but "tested" my hypothesis the "wrong way"..

But now one would no longer have the full 2-stop range (on a meter that shows -2..-1..0..+1..+2) above the zero point for adjusting the exposure for a particularly tricky scene..

For example: If one wanted to go 2-stops over what's "normal" for one's camera - EV set to +2/3 - would have to figure out in one's head what the appropriate setting is for +2 & 2/3 (since the scale pegs at +2), whereas if the meter has been zeroed out at +2/3 then only need quickly turn the jog wheel to til meter reads +2..

LightBug wrote:.

Thanks for the interesting information on Nikon cameras..

Your welcome..

Good Day,Roonal.

'Money doesn't buy happiness, but it makes for an extravagant depression' by golf tournament sportscaster..

Comment #12

Thanks guys. It seems that I have made a mistake in buying Canon A560. Should have gotten A570 which could provide me with full manual controls for experimenting and learning. Without experimenting, I cannot learn much. I am planning to get G9 now...

Comment #13

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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