Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 75,266   Posts: 1,660,623   Online: 789
      
Results 1 to 9 of 9
  1. #1
    Southern-Lights's Avatar
    Join Date
    Apr 2010
    Shooter
    35mm
    Posts
    50

    Aperture Question.

    I noticed that when I change the aperture on a lens, that the aperture doesn't actually change until I press the shutter button. Is this normal?

  2. #2

    Join Date
    Mar 2005
    Shooter
    ULarge Format
    Posts
    875
    Images
    24
    If you are shooting a SLR, then yes, this is normal. The lens stays at its maximum aperture until you press the shutter so that you have the maximum amount of light through the view finder to focus. Check to see if your camera has a depth of field preview button if you want to check the effect of a smaller aperture in the view finder.

  3. #3
    keithwms's Avatar
    Join Date
    Oct 2006
    Location
    Charlottesville, Virginia
    Shooter
    Multi Format
    Posts
    6,075
    Blog Entries
    20
    Images
    129
    For many SLRs, particularly newer ones, it is perfectly normal. This allows you to see a bright image in the viewfinder, making it easier to focus and compose. Many cameras configured this way also have DOF preview buttons so that you can momentarily look at the effect of the aperture in the viewfinder and quickly return to the brighter view.
    "Only dead fish follow the stream"

    [APUG Portfolio] [APUG Blog] [Website]

  4. #4
    MattKing's Avatar
    Join Date
    Apr 2005
    Location
    Delta, British Columbia, Canada
    Shooter
    Multi Format
    Posts
    13,860
    Images
    63
    Sadly, I can remember when this was a new feature .

    It is called "open aperture metering".

    It can be contrasted with "stop-down metering".

    If you use your camera with some specialized accessories, like a bellows for close focussing, you may find that you have to use it in "stop-down metering" mode.
    Matt

    “Photography is a complex and fluid medium, and its many factors are not applied in simple sequence. Rather, the process may be likened to the art of the juggler in keeping many balls in the air at one time!”

    Ansel Adams, from the introduction to The Negative - The New Ansel Adams Photography Series / Book 2

  5. #5
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    In a darkroom far, far away...
    Shooter
    Multi Format
    Posts
    7,115
    Blog Entries
    30
    Images
    19
    MC lenses. Ah. Those were the days.

    OH LORD!
    Thank you.
    -CW

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  6. #6
    Southern-Lights's Avatar
    Join Date
    Apr 2010
    Shooter
    35mm
    Posts
    50
    Okay. Thanks for the fast replies. Just wanted to make sure there was nothing wrong with my camera.

  7. #7
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    In a darkroom far, far away...
    Shooter
    Multi Format
    Posts
    7,115
    Blog Entries
    30
    Images
    19
    Nope. All operating as per specs. Just the DOF preview function.
    Thank you.
    -CW

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  8. #8
    Christopher Walrath's Avatar
    Join Date
    Dec 2005
    Location
    In a darkroom far, far away...
    Shooter
    Multi Format
    Posts
    7,115
    Blog Entries
    30
    Images
    19
    Quote Originally Posted by Sirius Glass View Post
    Chris,

    Nothing is stopping you from setting aside your LF equipment and picking up at 35mm camera again.

    Steve
    Oh, I think I remember where I put them. Now, lemme see . . .
    Thank you.
    -CW

    "Wubba, wubba, wubba. Bing, bang, bong. Yuck, yuck, yuck and a fiddle-dee-dee." - The Yeti

  9. #9

    Join Date
    Apr 2008
    Location
    Los Angeles, CA
    Shooter
    Multi Format
    Posts
    8,006
    Images
    4
    This is what is meant by automatic aperture. The "auto" that you see on many older lenses was for this feature. It was a big deal when this feature was introduced! With a manual aperture, you do not have this, thus you must open up the lens all the way if you want the brightest image in the viewfinder, and then stop down before you actually shoot the picture. Some lenses (such as Pentax 67, Mamiya M645, or Pentax M42 mount) have a switch that allows you to select manual or automatic aperture.
    2F/2F

    "Truth and love are my law and worship. Form and conscience are my manifestation and guide. Nature and peace are my shelter and companions. Order is my attitude. Beauty and perfection are my attack."

    - Rob Tyner (1944 - 1991)



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin