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Thread: pls help to make background blurr

  1. #1

    Default pls help to make background blurr

    Hi,
    I have tried few times to get my object clear with background blurr but always
    couldn't get what I want.
    I am using my canon pro-1, set to Av mode, ISO50, built in flash:ON
    Set my lens from 28mm to 85mm (zoom in my object closer),
    Av at 3.5 (smallest) under room light.
    Metering set to center weighted average (focus on her eyes)
    She stood up 1.5m away from background.

    Result: clear object but background only slightly blurr
    (is it because compact cam, not DSLR ?)

    Pls enlighten me

  2. #2
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    Default Re: pls help to make background blurr


  3. #3
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    Default Re: pls help to make background blurr

    There r a few ways of doin it (assuming u r at max aperture)

    1) Increase e distance between subject n background
    2) Use longer focal length
    3) Reduce distance between u n e subject

    Experts... Pls correct me if I'm wrong or if there is anymore to add

  4. #4
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    Default Re: pls help to make background blurr

    If there is enough space then position the subject further away from the background. 1.5m is not really enough to blur the background even for DSLRs unless at really wide apertures such as f/1.8.

    Compact cameras do have a wider DOF compared to DSLRs at the same equivalent focal length and f-number.

    If possible, try adding a teleconvertor to your camera.

    Finally, there is always post processing, which is shown in megaweb's article (see link provided by espn).
    As complexity rises, precise statements lose meaning and meaningful statements lose precision.

  5. #5

    Default Re: pls help to make background blurr

    Quote Originally Posted by roygoh
    If there is enough space then position the subject further away from the background. 1.5m is not really enough to blur the background even for DSLRs unless at really wide apertures such as f/1.8.

    Compact cameras do have a wider DOF compared to DSLRs at the same equivalent focal length and f-number.

    If possible, try adding a teleconvertor to your camera.

    Finally, there is always post processing, which is shown in megaweb's article (see link provided by espn).
    It really depends on the focal length. The longer the focal length, the shallower the depth of field for a given distance and aperture. For those digital compacts, because the sensor size is small, the focal length of the lens used is also short and therefore it is very difficult to achieve a shallow depth of field even when the aperture is large.

  6. #6

    Default Re: pls help to make background blurr

    Hi ESPN,
    I do appreciate for your kindness to share this info.
    I did try and managed to blurr it ..
    Thank you

    Hi Roygoh and Hazta.
    Thanks to you too....
    Cheers

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