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  • exposure compensation in manual mode

    Hello

    I am trying to get my head round manual mode on the em3 mark 3. If I alter the aperature or shutter speed with the iso set manualy the exposure compensation automaticaly alters itself. Is this normal?

    Dave

  • #2
    Without testing I think the answer has to be yes ,as manual will try to achieve a balanced exposure .. manual mode works differently with most camera brands each applying there own method

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    • #3
      So if I want to light paint I just set the aparture, shutter and Iso and ignore the exposure compemsation altering itself., sorr y to go on but I have given myself a headache thinking this through.....

      Comment


      • #4
        Manual Mode should be 100% under your control, without anything automatically compensating. How else could we spot meter a part of the image and allow the rest to be over or under exposed.
        Graham

        We often repeat the mistakes we most enjoy...

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        • #5
          The metering in manual mode looks like a compensation dial but is in fact showing how much you are over/under exposed….
          Paul

          Retired and loving it.

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          • #6
            I think the number you are looking at is just the exposure error, rather than a compensation. Click away and it should capture what you see on the screen.............

            Snap Walti....:-)
            https://www.flickr.com/photos/133688957@N08/
            Mark Johnson Retired.

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            • MJ224
              MJ224 commented
              Editing a comment
              Yep...on the ball..:-))

            • MJ224
              MJ224 commented
              Editing a comment
              I think the Elephant in the room is ISO. If on Auto, you are ***ked, it need to be set on a specific and intended value, otherwise you ain't in Manual....

            • ronidog
              ronidog commented
              Editing a comment
              in my trials i took the iso off auto and set it to 200

          • #7
            Graham, thats what I though. I have tried manual on both the em1 mark 2 and the em5 mark 3. On both the exposure compansation kicks in automaticly. I cant see a way of turning it off or correcting it 🙁

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            • Ian
              Ian commented
              Editing a comment
              It's not 'compensation' it's telling you what it thinks the variance from 'correct' exposure is, in +or- EVs. You can ignore it and rely on the brightness viewed in actual pictures you take.

          • #8
            Even in manual mode the camera is evaluating the exposure. If the settings you have chosen coincide with the metering system seeing what it agrees as correct exposure then the 'compensation' will show as zero. But if the metering thinks you're over or under exposing, it will show to what degree in either + or - EV values.

            Ian
            Founder and editor of:
            Olympus UK E-System User Group (https://www.e-group.uk.net)

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            • #9
              To add to what others have said, the only time to use exposure compensation in Manual mode is if you selected Auto-ISO. In that case, adding positive or negative exposure compensation will cause the camera to choose a higher or lower ISO to achieve what it thinks is correct exposure for the metering mode. You’d need to set the exposure comp on a button like AEL since the dials are required to set shutter and aperture. If the camera cannot achieve correct exposure, the ISO will flash at you in the EVF at the max or min ISO it can choose. You can limit the ISO range it can choose from in camera settings. I have my C3 settings set up for this M mode usage pattern.

              Bill
              https://www.flickr.com/photos/macg33zr/

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              • #10
                Originally posted by ronidog View Post
                So if I want to light paint I just set the aparture, shutter and Iso and ignore the exposure compemsation altering itself., sorr y to go on but I have given myself a headache thinking this through.....
                Forget all that if you are on Light painting. Just turn the Speed Dial to B and beyond that are the LiveCom and 2 others. Just use the LiveCom.

                Tutorial on LiveCom
                * Henry
                * Location: Subang Jaya, Selangor
                * Malaysia


                All my garbage so far.

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                • #11
                  Click image for larger version  Name:	PC290275.jpg Views:	0 Size:	140.6 KB ID:	854597
                  Thanks Everyone for your encouragement. I obviously read too much and watched too many clever people on youtube.So when it came to using the camera I got lost and worst of all tried to follow the Olympus menu system!! I wish somebody would wrtie simple imstructions in the menus. 😀



                  Here is one of the better results from the trial tonight.

                  Comment


                  • MJ224
                    MJ224 commented
                    Editing a comment
                    Glad you sorted it. Problem is that complex camera or anything of that ilk do need complex menus/instructions on how to use them...:-)

                  • Ian
                    Ian commented
                    Editing a comment
                    Nice shot - a great start! 👍

                • #12
                  Originally posted by BDennis View Post
                  To add to what others have said, the only time to use exposure compensation in Manual mode is if you selected Auto-ISO. In that case, adding positive or negative exposure compensation will cause the camera to choose a higher or lower ISO to achieve what it thinks is correct exposure for the metering mode. You’d need to set the exposure comp on a button like AEL since the dials are required to set shutter and aperture. If the camera cannot achieve correct exposure, the ISO will flash at you in the EVF at the max or min ISO it can choose. You can limit the ISO range it can choose from in camera settings. I have my C3 settings set up for this M mode usage pattern.

                  Bill
                  Bill, sorry if this is s silly question but I am new to Olympus and trying to get to grips with the setup. I have been using the canon R5 and exp comp in manual mode is simple but it seems this is not so with the oem 1 mk iii.
                  Are you saying that you use the AEL button to achieve a set compensation IE + 2stops or do you press the AEL button to assign a dial to vary the ISO.

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                  • BDennis
                    BDennis commented
                    Editing a comment
                    Not a silly question at all, I tried to explain my setup in a reply below. For some reason I always assign the +/- exposure comp button to magnify so use the AEL button instead for this in my M mode setup. In A mode and S mode setups I have have exposure compensation on a dial. The other key is enabling auto-ISO in M mode under the E1 gear menu.

                • #13
                  Bottom line:

                  1) Fixed ISO:

                  - You select ISO, aperture, and shutter speed. The exposure will be what it is.
                  - The display will show the deviation from your selected settings to what the meter thinks.
                  - Exp comp is disabled
                  - AEL will only lock the displayed deviation from the metered exposure. It won't do anything to the shutter speed, aperture or ISO settings.

                  2) Auto ISO

                  - You select aperture and shutter speed. The camera will, if possible, adjust the ISO to keep the exposure aligned with the metered view.
                  - The display will show the deviation from your selected settings (+ the camera's selected ISO) to what the meter thinks.
                  - Exp comp now works and sets a bias from the metered exposure
                  - AEL will now lock the auto ISO - effectively it's like turning auto ISO off at the setting it was at before you pressed AEL

                  In all cases, the display will show the +/- deviation and also a simulation of over/under exp unless you've got Live Boost or S-OVF on.
                  Last edited by pdk42; 30 December 2021, 03:45 PM.
                  Paul
                  Panasonic S1Rii and S5 with a few lenses
                  flickr
                  Portfolio Site

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                  • #14



                    - You select aperture and shutter speed. The camera will, if possible, adjust the ISO to keep the exposure aligned with the metered view.
                    - The display will show the deviation from your selected settings to what the meter thinks.
                    - Exp comp now works and sets a bias from the metered exposure
                    - AEL will now lock the auto ISO - effectively it's like turning auto ISO off at the setting it was at before you pressed AEL

                    In all cases, the display will show the +/- deviation and also a simulation of over/under exp unless you've got Live Boost or S-OVF on.[/QUOTE]

                    Thanks for that Paul and forgive me if this is a silly question but how do you now, physically control (IE add or subtract) Compensation as the camera dials control aperture and shutter speed.

                    Comment


                    • pdk42
                      pdk42 commented
                      Editing a comment
                      You need to do two things:

                      1) Have exp comp assigned to a button (the default is, not too surprisingly, the +/- button !!, but some re-map it).
                      2) Press and hold this button and then spin the rear dial. This will change the exp comp

                  • #15
                    Originally posted by Fordsabroad View Post
                    Bill, sorry if this is s silly question but I am new to Olympus and trying to get to grips with the setup. I have been using the canon R5 and exp comp in manual mode is simple but it seems this is not so with the oem 1 mk iii.
                    Are you saying that you use the AEL button to achieve a set compensation IE + 2stops or do you press the AEL button to assign a dial to vary the ISO.
                    I think I confused things with my use of the AEL button. I don’t use exposure lock, I just use that button to assign to exposure compensation in this M-mode Auto-ISO setup. I press and hold the button and turn a dial to add +/- exposure compensation according to needs. I use the front dial for this but either works for me.

                    I find this useful for bird flight photos or for fast moving wildlife. I set the shutter speed and aperture (often stopped down a bit) then select exposure comp according to if there is sky background or trees etc using the live view as well to get it right. I just personally had better success with this recently with my upper ISO at 3200 and trying to make sure my shutter speed is high enough to capture moving birds etc. The high ISO that can be chosen by the camera doesn’t bother me as the software like DXO can sort this out to my satisfaction. The setup means the camera should use the best possible ISO (i.e. lowest) for the given shutter / aperture and light conditions.

                    The SCP and button setup below shows most of the setup. In this SCP I have dialled in exposure comp +0.7 so that is displayed but the meter bars shows lots of under exposure as this is looking at my lens cap in a dark room! This +0.7 is also displayed in the EVF so I always know if I have compensation applied. In menu E1 I set my ISO-Auto-Set for a max ISO of 3200 as the upper limit.

                    I could have used the ISO button instead of AEL for my exposure comp, but sometimes I do want to quickly take control of the ISO and I have muscle memory for that button from assigning it in other setups. You can use any button you like of course (apart from some like bin or menu!).

                    Update : you also need to enable Auto-ISO for manual mode under gear menu E1. Set Auto-ISO to “All”. So much setup with OMD stuff…

                    Click image for larger version  Name:	D9B0F871-E513-4C9F-9ED1-5386C13F0EDD.jpg Views:	0 Size:	293.4 KB ID:	854666

                    Click image for larger version  Name:	51FF7EA4-C270-464F-B495-6C7642C0C014.jpg Views:	0 Size:	188.7 KB ID:	854667
                    https://www.flickr.com/photos/macg33zr/

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