Results 1 to 14 of 14

Thread: Nikon D40 Metering And Focusing

  1. #1

    Default Nikon D40 Metering And Focusing

    Hello everyone.. I just bought this dSLR camera(nikon d40) and have been experimenting with it ever since. Has always been my Hobby to 'shoot' since young.. but this qns has always bug me and i tried searching on the forum.. but none answered my qns.

    1st: metering onli works for P,A,S mode right? How come it doesnt work on the M mode.

    2nd: I tried to meter off an object then recompose and zoom.. however the meter goes off. how come? even the shutter/apperture changes.

    3rd: once the exposure is lock, i cant change the focus isit?

    4th: for manual mode, exposure lock doesnt work isit?

    thx for answering in advance..

  2. #2
    Member
    Join Date
    Jan 2005
    Location
    Singapore
    Posts
    998

    Default Re: Nikon D40 Metering And Focusing

    have you read the manual?

  3. #3

    Default Re: Nikon D40 Metering And Focusing

    yes i did. but i just kinda don get it when i tried on my camera.. would appreciate those experienced advice on the metering and focusing relationship. how they are related, if it is. And why it doesnt work on M mode.

  4. #4
    Moderator catchlights's Avatar
    Join Date
    Sep 2004
    Location
    Punggol, Singapore
    Posts
    21,901

    Default Re: Nikon D40 Metering And Focusing

    all mode beside manual mode, you ask the camera to decide the aperture or shutter setting for you.

    when on manual mode, the metering only show you a indication, of what combination of aperture and shutter is the correct exposure, so you have to decide do or do not fellow the suggestion of exposure meter.

    since you able set the aperture and shutter speed yourself on manual mode, why you still need the lock it??

    not sure about D40 has AE or focusing lock button, you should referring to your owner manual
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  5. #5

    Default Re: Nikon D40 Metering And Focusing

    yup i do have AE/AF-L button. Set it to exposure lock. hmm. metering only so happens when u set it to centre-weighted and spot metering settings and also dynamic and single AF mode?

    I realised that the shutter and app changes when its on closest sub AF and also when metering is matrix..

    which setting will the exposure lock.. and which setting will it not locked?

  6. #6
    Member/Tangshooter
    Join Date
    May 2006
    Location
    ClubSNAP Community
    Posts
    3,118

    Default Re: Nikon D40 Metering And Focusing

    Quote Originally Posted by def.p0et View Post
    Hello everyone.. I just bought this dSLR camera(nikon d40) and have been experimenting with it ever since. Has always been my Hobby to 'shoot' since young.. but this qns has always bug me and i tried searching on the forum.. but none answered my qns.

    1st: metering onli works for P,A,S mode right? How come it doesnt work on the M mode.

    2nd: I tried to meter off an object then recompose and zoom.. however the meter goes off. how come? even the shutter/apperture changes.

    3rd: once the exposure is lock, i cant change the focus isit?

    4th: for manual mode, exposure lock doesnt work isit?

    thx for answering in advance..
    1) Metering works on all modes, including M mode. But on M mode, u have to change the ISO or Aperture or Shutter speed urself to ur liking..

    2) U have to use the AE-L button to lock ur exposure, then use shutter release button half-press for auto focusing..

    3) No..read up manul on AE-L

    4) I think it should works..but on M mode, u have full control, hardly use the exposure lock..
    This is an electronic post which requires no signature.

  7. #7

    Default Re: Nikon D40 Metering And Focusing

    Quote Originally Posted by def.p0et View Post
    Hello everyone.. I just bought this dSLR camera(nikon d40) and have been experimenting with it ever since. Has always been my Hobby to 'shoot' since young.. but this qns has always bug me and i tried searching on the forum.. but none answered my qns.

    1st: metering onli works for P,A,S mode right? How come it doesnt work on the M mode.

    2nd: I tried to meter off an object then recompose and zoom.. however the meter goes off. how come? even the shutter/apperture changes.

    3rd: once the exposure is lock, i cant change the focus isit?

    4th: for manual mode, exposure lock doesnt work isit?

    thx for answering in advance..
    1. In M mode, you adjust the shutter speed and aperture yourself. There is still a meter in the viewfinder to tell you the exposure (+ or -).

    2. You must perform a exposure lock. You can use the AE-L/AF-L button or configure the shutter release to lock exposure when half-press. Refer to the manual for more information.

    3. You can still re-focus. It depends how you configure your exposure lock.

    4. Why do you need to perform exposure lock in manual mode. The shutter speed and aperture do not change unless you change it.

    You usually do exposure lock with spot or center weighted metering. It does not make much sense to use matrix metering.

    BC

  8. #8

    Default Re: Nikon D40 Metering And Focusing

    Quote Originally Posted by def.p0et View Post
    Hello everyone.. I just bought this dSLR camera(nikon d40) and have been experimenting with it ever since. Has always been my Hobby to 'shoot' since young.. but this qns has always bug me and i tried searching on the forum.. but none answered my qns.

    1st: metering onli works for P,A,S mode right? How come it doesnt work on the M mode.
    It should still work in the form of a bargraph telling you whether your setting will give over exposure or underexposure.

    2nd: I tried to meter off an object then recompose and zoom.. however the meter goes off. how come? even the shutter/apperture changes.
    If the setting is already at the maximum aperture of the lens, when you zoom the maximum aperture for certain lenses may change, so that will in turn change the shutter speed to maintain the exposure value.

    3rd: once the exposure is lock, i cant change the focus isit?
    It may be your setting, if you set to AE/AF lock, you lock both. If you set it properly, you will only lock the exposure and not the focus, so you should still be able to AF.

    4th: for manual mode, exposure lock doesnt work isit?
    In manual mode, the exposure is set by you, so it's supposed to be 'locked' already and should not change unless you change it.

  9. #9

    Default Re: Nikon D40 Metering And Focusing

    brudder,
    all your problems you mentioned, can be solved if you just use M mode.

  10. #10

    Default Re: Nikon D40 Metering And Focusing

    thank you very much.. and errr.. sometimes, situations just doesnt allow u to use Manual mode.. haha..

  11. #11
    Moderator catchlights's Avatar
    Join Date
    Sep 2004
    Location
    Punggol, Singapore
    Posts
    21,901

    Default Re: Nikon D40 Metering And Focusing

    Quote Originally Posted by def.p0et View Post
    thank you very much.. and errr.. sometimes, situations just doesnt allow u to use Manual mode.. haha..
    is possible, but I don't expect everyone able to do that.
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  12. #12

    Default Re: Nikon D40 Metering And Focusing

    i dun think i can.. anyway, i was reading few threads on metering.. im confused.. if i wanna meter of 'reference A', does reference A have to be in focus to be metered correctly?

  13. #13
    Moderator catchlights's Avatar
    Join Date
    Sep 2004
    Location
    Punggol, Singapore
    Posts
    21,901

    Default Re: Nikon D40 Metering And Focusing

    Quote Originally Posted by def.p0et View Post
    i dun think i can.. anyway, i was reading few threads on metering.. im confused.. if i wanna meter of 'reference A', does reference A have to be in focus to be metered correctly?
    don't have to be in focus when you do metering.
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

  14. #14
    Member
    Join Date
    Feb 2007
    Location
    planet earth
    Posts
    781

    Default Re: Nikon D40 Metering And Focusing


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
  •