Results 1 to 10 of 10

Thread: How to take metering?

  1. #1
    Member
    Join Date
    Sep 2003
    Location
    West
    Posts
    681

    Default How to take metering?

    Hi Guys,

    Assuming I want to take metering of the background and recompose. Do I need to half press shutter and press the AE-L button or can I just press the AE-L button.

    If the camera allow to take the metering by pressing the AE-L button. When I recompose the photo and half press the shuttle. Will the AE-L lost?

    I go through the D80 manual and it say the half press shuttle can be customize to focus lock only or focus lock and AE-L.
    Last edited by shark; 8th November 2006 at 05:12 PM.

  2. #2
    Moderator chngpe01's Avatar
    Join Date
    Oct 2002
    Location
    Singapore, Singapore, Singapor
    Posts
    9,863
    Blog Entries
    7

    Default Re: How to take metering?

    Thread moved to appropriate forum

  3. #3

    Default Re: How to take metering?

    You need to half press shutter first to activate the meter, then the AE-L depends on the setting in the custom settings. I think this is still very much a Nikon related question, don't know why it's moved. I don't think users of other makes will be able to help.

    What you can do is try the AE-L and after shooting see if the metering changes when you point to a brighter or darker area. If I don't remember wrongly, the default is you have to hold on to the button to lock. The one on my D70s is set to AE-L hold, press once to lock exposure and press again to unlock. It doesn't unlock with the shutter release.
    Last edited by lsisaxon; 3rd November 2006 at 11:44 PM.

  4. #4
    Senior Member
    Join Date
    Dec 2005
    Location
    KFC
    Posts
    1,776

    Default Re: How to take metering?

    In very basic terms:
    Metering means to ensure that u properly expose ur scene. There are 3 kinds of mode (a) matrix metering (b) centre weighted (c) spot metering
    (a) matrix metering - normally used in landscape photography to properly expose the whole scene, the camera will determine the light across the whole picture and try to find the best setting to properly expose everything.

    (b) centre weighted - normally used in portrait setting or other scenes where there is a main object that occupies abt 70% of the picture center. The camera will try to properly expose the 70% of that picture and "ignore" the background. So for example, if ur object is black and ur background is white, the camera will meter the black object, and will try to adjust itself to bring out the black object's details. In order to do so, it got to expose more. So wat u get is a properly exposed black object against a over exposed background. Remember the background is already white, and because of the need to expose more to bring out the black details, the white background will be overexposed.
    So i think u get wat i mean, the camera will only care abt the center 70%.

    (c) spot metering - similar to the centre weighted metering, but just that in spot metering, we meter only a small spot eg. a 6mm diameter circle in the picture. This is used for example, when there is a small frog in a bright picture. if u use matrix metering, the camera will evaluate the whole scene and think that the whole picture is too bright, and hence under expose the picture to generate a proper exposure for the whole scene. But in doing so, the small frog may be further underexposed and become dark frog.
    in addition, if u use centre weighted metering, remember it assigns abt 70% to the center of the picture, but the frog is only very very small in the picture! hence the end result will also be the camera feels that the scene is too bright and underexpose.
    Thus in spot metering, u aim the center crosshair on the frog to meter the frog. This will ensure that the frog is properly exposed and be seen! but of course the background may not be properly exposed.

    In apeture priority, shutter priority and program mode, u need to select ur desired metering style: (a) matrix metering (b) centre weighted (c) spot metering and then the camera will take care of the metering, thus u just concentrate on selecting the correct apeture, shutter speed or iso value/white balance to shoot ur photo.

    But for manual mode:
    1) Switch ur camera to manual mode
    2) Select ur desired metering style: (a) matrix metering (b) centre weighted (c) spot metering
    3) if using spot metering or centre weighted metering, remember to point ur centre crosshair onto ur desired object.
    4) look into ur viewfinder and u will see a horizontal bar something like this + lllllll|llllll -
    5) what u got to do now, is to turn ur apeture dial or ur shutter dial to make sure that the horizontal bar is centered
    6) half press ur shutter release so that the exposure is locked i.e. even if u point at other places in ur scene, the metering wont change due to metering other objects.
    7) frame ur photo nicely and shoot.

    Hope u understand all that i just typed..have fun
    09 Oct 09 officially marks the date I become a canon convert.

  5. #5
    Member
    Join Date
    Sep 2003
    Location
    West
    Posts
    681

    Default Re: How to take metering?

    6) half press ur shutter release so that the exposure is locked i.e. even if u point at other places in ur scene, the metering wont change due to metering other objects.
    7) frame ur photo nicely and shoot.
    Will the recomposed picture be out of focus since the focus was lock at the metering area?

    Hope u understand all that i just typed..have fun[/QUOTE]

  6. #6
    Member
    Join Date
    Sep 2003
    Location
    West
    Posts
    681

    Default Re: How to take metering?

    Quote Originally Posted by lsisaxon View Post
    You need to half press shutter first to activate the meter, then the AE-L depends on the setting in the custom settings. I think this is still very much a Nikon related question, don't know why it's moved. I don't think users of other makes will be able to help.

    What you can do is try the AE-L and after shooting see if the metering changes when you point to a brighter or darker area. If I don't remember wrongly, the default is you have to hold on to the button to lock. The one on my D70s is set to AE-L hold, press once to lock exposure and press again to unlock. It doesn't unlock with the shutter release.
    I thought it was a nikon related question.

    Will try that. thanks

  7. #7

    Default Re: How to take metering?

    Quote Originally Posted by shark View Post
    6) half press ur shutter release so that the exposure is locked i.e. even if u point at other places in ur scene, the metering wont change due to metering other objects.
    7) frame ur photo nicely and shoot.
    Will the recomposed picture be out of focus since the focus was lock at the metering area?

    Hope u understand all that i just typed..have fun
    Sometimes if the lighting is tricky, I will use manual exposure mode and set my shutter speed and aperture using the meter on the subject, then forget about it and shoot.

  8. #8
    Member
    Join Date
    Sep 2003
    Location
    West
    Posts
    681

    Default Re: How to take metering?

    Quote Originally Posted by lsisaxon View Post
    You need to half press shutter first to activate the meter, then the AE-L depends on the setting in the custom settings. I think this is still very much a Nikon related question, don't know why it's moved. I don't think users of other makes will be able to help.

    What you can do is try the AE-L and after shooting see if the metering changes when you point to a brighter or darker area. If I don't remember wrongly, the default is you have to hold on to the button to lock. The one on my D70s is set to AE-L hold, press once to lock exposure and press again to unlock. It doesn't unlock with the shutter release.
    Looks like I don't have to half-press shutter to take metering. I tried pointing my camera where I want to meter. Press the AE-L button (I set it to AE lock hold so I don't need to keep the AE-L button press), recompose and half-press to focus.
    Last edited by shark; 8th November 2006 at 05:11 PM.

  9. #9
    Senior Member +evenstar's Avatar
    Join Date
    Jan 2004
    Location
    Singapore / United Kingdom
    Posts
    5,655

    Default Re: How to take metering?

    are you playing badminton or flying a plane? where did the "shuttle" come out from??
    eat. drink. shoot

  10. #10
    Member
    Join Date
    Sep 2003
    Location
    West
    Posts
    681

    Default Re: How to take metering?

    Quote Originally Posted by +evenstar View Post
    are you playing badminton or flying a plane? where did the "shuttle" come out from??
    Sorry man.....Typo....

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •