EV Compensation/Bracketing

sodium99 · 5th May 2005

Hi everyone, seeking answer to the following question;

While shooting in M mode and setting exposure compensation or bracketing, does the camera change the exposure by altering aperture or shutter speed or iso?

Thanks for helping...

~Arcanic~ · 5th May 2005

not too sure if i understand what u saying here,
but when u're using M mode, i dun think u are able to set exposure compensation though, cos both the Av and Shutter is set by e user...

do correct me if i'm wrong other more experience ones out there...

yanyewkay · 5th May 2005

i'm quite sure Manual mode cannot do ev/bracketing. Only the semi-auto modes like A(Av) or S(Tv) can do it. Full Auto also can do it. If you want to do bracketing in M you got to do it manually.

Ah_Seng · 6th May 2005

Err.......I do bracket sometimes in manual mode.
I just select +/- 1 stop and it fires three frames continuously with the aperture remaining constant(what I set) and shutter speed increase/decrease by 1 stop.

Perhaps it depends on camera models?

Snowcrash · 6th May 2005

Originally Posted by eagles_creek

Err.......I do bracket sometimes in manual mode.
I just select +/- 1 stop and it fires three frames continuously with the aperture remaining constant(what I set) and shutter speed increase/decrease by 1 stop.

Perhaps it depends on camera models?

Is it manual mode or aperture priority mode (AV mode)?

yanyewkay · 6th May 2005

i guess it depends on model.. what model you using? I'm sure D70 and 20D doesn't have this feature

megaweb · 6th May 2005

try this link

http://www.mir.com.my/rb/photography...0QD/index1.htm

Ah_Seng · 6th May 2005

I am using the AEB (Auto Exposure Bracketing) function with my EOS 66 in manual mode.

Have not tried with my EOS 30 yet, but it has the same function too as in from the manual.

~Arcanic~ · 6th May 2005

Originally Posted by eagles_creek

I am using the AEB (Auto Exposure Bracketing) function with my EOS 66 in manual mode.

Have not tried with my EOS 30 yet, but it has the same function too as in from the manual.

interesting.. cos my 10D also dun have this function... i mean, my 10D has AEB, but it doesn work in full M mode... how would e cam know whether u want to change the Aperture of e Shutter..?

megaweb · 6th May 2005

Auto Exposure Bracketing is for auto metering like P, Av/A or Tv/S only.

sodium99 · 6th May 2005

Originally Posted by megaweb

try this link

http://www.mir.com.my/rb/photography...0QD/index1.htm

Thanks for the helpful link, megaweb. Although some terms in the article seems unfamiliar to me since I'm not a eos user but I guess generally it states in 'P' mode, both aperture & shutter speed is adjusted. In 'A' mode, shutter speed is adjusted while in 'M' mode, aperture is adjusted.

btw, I'm using a nikon f80. guess it may differ slightly from an eos. I could do ev compensation in 'M' mode but it does not show changes to my aperture & shutter speed setting. Only shows the number of stops for compensation/bracketing...

which was why I ask the initial question...

~Arcanic~ · 7th May 2005

Originally Posted by sodium99

Thanks for the helpful link, megaweb. Although some terms in the article seems unfamiliar to me since I'm not a eos user but I guess generally it states in 'P' mode, both aperture & shutter speed is adjusted. In 'A' mode, shutter speed is adjusted while in 'M' mode, aperture is adjusted.

btw, I'm using a nikon f80. guess it may differ slightly from an eos. I could do ev compensation in 'M' mode but it does not show changes to my aperture & shutter speed setting. Only shows the number of stops for compensation/bracketing... which was why I ask the initial question...

i am really

by what u are trying to say here...

but i got a strong hunch u got some of the terms mixed up...

Ah_Seng · 7th May 2005

As copied from the link megaweb provided:

"Auto Exposure Bracketing An Auto Exposure Bracketing provides "insurance" shots - tricky situations when you are not very certain of the results in AUTO mode. This program automatically makes three exposures of the same scene - one under, one over, and one at the standard metered value. You can even adjust the amount of under and over- exposure by up to five stops in 1/2 stop increments and even shoots at 3-exposures sequence at full speed (Max. busting rate of 5 fps) under a second. IIn operation, both shutter speed and aperture will be shifted in Program AE mode. Shutter speed is shifted when using Av, DEP and Manual mode and in Tv mode only the aperture will be shifted. Flash is not workable in AEB."

As for my basic eos 66, the cam changes only the shutter speed during AEB and in manual mode.
The aperture size set remains constant. I have no control over which to adjust during that three frames.Henceforth, it will take frame1 (f8, 1/250), frame2 (f8, 1/500) and frame3 (f8, 1/125).

I've lost count of the number of times I have to do this.......becos my exposure skills cannot make it, so need to bracket at times. And becos I normally shoot in manual mode using b/w film, I'm sure the AEB function works in manual mode, well.....at least for me.

user111 · 7th May 2005

Originally Posted by sodium99

I could do ev compensation in 'M' mode but it does not show changes to my aperture & shutter speed setting. Only shows the number of stops for compensation/bracketing

it does not show changes because you are in MANUAL mode.

the term "exposure compensation" only makes sense in every exposure mode other than MANUAL mode, because the very fact that you are taking the initiative to MANUALLY adjust the setting of aperture and shutter speed at your own will is itself already an act of "compensation"

sodium99 · 7th May 2005

Originally Posted by eagles_creek

As for my basic eos 66, the cam changes only the shutter speed during AEB and in manual mode.
The aperture size set remains constant. I have no control over which to adjust during that three frames.Henceforth, it will take frame1 (f8, 1/250), frame2 (f8, 1/500) and frame3 (f8, 1/125).

I've lost count of the number of times I have to do this.......becos my exposure skills cannot make it, so need to bracket at times. And becos I normally shoot in manual mode using b/w film, I'm sure the AEB function works in manual mode, well.....at least for me.

I guess this sort of answered my question partially since it is using an eos as a reference. Assuming nikon also employ the same system (shutter speed adjusted by camera for bracketing), does that means bracketing shots of a moving subject will results in pictures showing different sense of speed (movement blur due to different shutter speed) and different exposure? Is there then no way to achieve that exact same picture with different exposure? Hope what I typed is understandable for you guys... hee...

sodium99 · 7th May 2005

Originally Posted by user111

it does not show changes because you are in MANUAL mode.

the term "exposure compensation" only makes sense in every exposure mode other than MANUAL mode, because the very fact that you are taking the initiative to MANUALLY adjust the setting of aperture and shutter speed at your own will is itself already an act of "compensation"

hmm... sounds very resonable although I was still able to make ev compensation +/- number of stops even after I set the axperture & shutter speed manually.. think i 'll go through the manual one more time and see if I missed out anything... thanks for the clear-cut answer..

user111 · 7th May 2005

i have verified with my eos camera..the LCD display indicating exposure compensation will vanish when in M mode, but will re-appear in other exposure modes.

the concept of exposure compensation is kinda redundant w.r.t manual exposure

give u an analogy:

PIN = personal id number
PIN number = personal id number number

so when u are talking about PIN, there is no need to add in the extra "number"

5th May 2005	#1
sodium99 New Member Join Date: Apr 2005 Posts: 35	EV Compensation/Bracketing Hi everyone, seeking answer to the following question; While shooting in M mode and setting exposure compensation or bracketing, does the camera change the exposure by altering aperture or shutter speed or iso? Thanks for helping...

5th May 2005	#3
yanyewkay Senior Member Join Date: Sep 2004 Location: Cons digger. Posts: 4,046	i'm quite sure Manual mode cannot do ev/bracketing. Only the semi-auto modes like A(Av) or S(Tv) can do it. Full Auto also can do it. If you want to do bracketing in M you got to do it manually. __________________ “How fortunate for leaders that men do not think.” - Adolf Hitler

6th May 2005	#4
Ah_Seng Member Join Date: Apr 2003 Location: Land of the woods........ Posts: 1,306	Err.......I do bracket sometimes in manual mode. I just select +/- 1 stop and it fires three frames continuously with the aperture remaining constant(what I set) and shutter speed increase/decrease by 1 stop. Perhaps it depends on camera models? Last edited by Ah_Seng; 6th May 2005 at 06:33 AM.

6th May 2005	#6
yanyewkay Senior Member Join Date: Sep 2004 Location: Cons digger. Posts: 4,046	i guess it depends on model.. what model you using? I'm sure D70 and 20D doesn't have this feature __________________ “How fortunate for leaders that men do not think.” - Adolf Hitler

6th May 2005	#7
megaweb Moderator Join Date: Jan 2002 Location: East Posts: 8,106	try this link http://www.mir.com.my/rb/photography...0QD/index1.htm __________________ See my Photo Gallery at the Clubsnap \| Pbase

5th May 2005	#2
~Arcanic~ Senior Member Join Date: Feb 2005 Location: Westy Posts: 2,688	not too sure if i understand what u saying here, but when u're using M mode, i dun think u are able to set exposure compensation though, cos both the Av and Shutter is set by e user... do correct me if i'm wrong other more experience ones out there...

7th May 2005	#13
Ah_Seng Member Join Date: Apr 2003 Location: Land of the woods........ Posts: 1,306	As copied from the link megaweb provided: "Auto Exposure Bracketing An Auto Exposure Bracketing provides "insurance" shots - tricky situations when you are not very certain of the results in AUTO mode. This program automatically makes three exposures of the same scene - one under, one over, and one at the standard metered value. You can even adjust the amount of under and over- exposure by up to five stops in 1/2 stop increments and even shoots at 3-exposures sequence at full speed (Max. busting rate of 5 fps) under a second. IIn operation, both shutter speed and aperture will be shifted in Program AE mode. Shutter speed is shifted when using Av, DEP and Manual mode and in Tv mode only the aperture will be shifted. Flash is not workable in AEB." As for my basic eos 66, the cam changes only the shutter speed during AEB and in manual mode. The aperture size set remains constant. I have no control over which to adjust during that three frames.Henceforth, it will take frame1 (f8, 1/250), frame2 (f8, 1/500) and frame3 (f8, 1/125). I've lost count of the number of times I have to do this.......becos my exposure skills cannot make it, so need to bracket at times. And becos I normally shoot in manual mode using b/w film, I'm sure the AEB function works in manual mode, well.....at least for me.

7th May 2005	#17
user111 Senior Member Join Date: Jul 2004 Posts: 4,719	i have verified with my eos camera..the LCD display indicating exposure compensation will vanish when in M mode, but will re-appear in other exposure modes. the concept of exposure compensation is kinda redundant w.r.t manual exposure give u an analogy: PIN = personal id number PIN number = personal id number number so when u are talking about PIN, there is no need to add in the extra "number"