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Thread: How to have shallow depth of field?

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    Senior Member cichlid's Avatar
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    Default How to have shallow depth of field?

    Hi, how to have shallow depth of field for portrait photo during day / night time. What are the settings. I know must have big aperture but i can't get it right. Only when taking small objects at near distance then can. Any tips? Btw, I'm using D40.

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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by cichlid View Post
    Hi, how to have shallow depth of field for portrait photo during day / night time. What are the settings. I know must have big aperture but i can't get it right. Only when taking small objects at near distance then can. Any tips? Btw, I'm using D40.
    what your lens' focal length?

    cheers...
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    Default Re: How to have shallow depth of field?

    get a f2.8 lens can liaoz...70-200 will be good to start off with...

  4. #4

    Default Re: How to have shallow depth of field?

    switch to aperture-priority mode, adjust to ur lowest f-stop number, (i think for ur kit lens is F3.5), then try experimenting.
    Zooming helps..
    Try learning off e internet, search for "depth-of-field"
    This site may help too: http://www.takegreatpictures.com/Art...7/default.aspx
    Canon 400D:18-55:75-300:50F1.8:tokina 28-70F2.8:
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    Member grimicer's Avatar
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    Default Re: How to have shallow depth of field?

    use max zoom, let's say 70-200 ( u choose 200)
    then biggest aperture, meaning f3.5-f5.6, you choose f3.5

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    Senior Member +evenstar's Avatar
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    Default Re: How to have shallow depth of field?

    DOF is affected by:
    1) Aperture
    2) Focal Length
    3) Subject-to-lens distance
    eat. drink. shoot

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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by +evenstar View Post
    DOF is affected by:
    1) Aperture
    2) Focal Length
    3) Subject-to-lens distance
    and also subject-to-background distance.

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    Senior Member knpan's Avatar
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    Default Re: How to have shallow depth of field?

    i think u did not zoom in the kit lens, from the way u said only achivable at near disance to lens only. zoom in to the max 55mm. and u will see.

  9. #9

    Default Re: How to have shallow depth of field?

    Quote Originally Posted by grimicer View Post
    use max zoom, let's say 70-200 ( u choose 200)
    then biggest aperture, meaning f3.5-f5.6, you choose f3.5
    No.. if he's at 200mm then he can only choose f5.6.

  10. #10

    Default Re: How to have shallow depth of field?

    50mm F1.2

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    Senior Member +evenstar's Avatar
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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by grimicer View Post
    use max zoom, let's say 70-200 ( u choose 200)
    then biggest aperture, meaning f3.5-f5.6, you choose f3.5
    is there even a 70-200 f3.5-5.6?

    and if he chooses 200mm, max aperture is 5.6
    eat. drink. shoot

  12. #12
    Member grimicer's Avatar
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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by +evenstar View Post
    is there even a 70-200 f3.5-5.6?

    and if he chooses 200mm, max aperture is 5.6
    not referring to the same lens just asking him to choose the max focal length + use wide open to achieve as much bokeh as possible.

    sorry if it was confusing
    Last edited by grimicer; 24th December 2006 at 09:20 PM.

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    Senior Member zac08's Avatar
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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by grimicer View Post
    not referring to the same lens just asking him to choose the max focal length + use wide open to achieve as much bokeh as possible.

    sorry if it was confusing
    If's it's a variable aperture lens. The smaller aperture will be for the max zoom setting.

    For e.g. Nikon's 70-210 f4 - f5.6

    at 70mm f4 is MAX
    at 210mm f5.6 is MAX. You can't get it to open to f4 at 210mm...
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  14. #14
    Member grimicer's Avatar
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    Default Re: How to have shallow depth of field?

    hihi, guess it wasn't a good example.
    my mistake.

    probably more applicable with constant aperture rather than variable aperture.
    Last edited by grimicer; 24th December 2006 at 10:59 PM.

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    Senior Member cichlid's Avatar
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    Default Re: How to have shallow depth of field?

    Merry X'mas, thanks for all the replies...i got it...just zoom in and use wide aperture....got a lot to learn...

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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by cichlid View Post
    Merry X'mas, thanks for all the replies...i got it...just zoom in and use wide aperture....got a lot to learn...
    Hi cichild,

    correct, getting closer to the subject also helps.

    Using the widest aperture on your lens helps too.

    Happy snapping.


    Bernard

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    Default Re: How to have shallow depth of field?

    Quote Originally Posted by ExplorerZ View Post
    and also subject-to-background distance.
    and CoC (Circle of Confusion) also determine DoF.

    Regards,
    Arto.

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