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Thread: Bokeh Pic

  1. #1

    Default Bokeh Pic

    Hi...
    can anyone teach me how to take a bokeh pic?

    i'm still beginner...sorry that i ask the stupid question here..

  2. #2
    Member thenomad's Avatar
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    Default Re: Bokeh Pic

    Quote Originally Posted by Jasleen Chan View Post
    Hi...
    can anyone teach me how to take a bokeh pic?

    i'm still beginner...sorry that i ask the stupid question here..
    hi, you just need to use a large aperture, e.g. f/2.8, f/4, and focus on the subject in front of you. for more bokeh effect, focus closer to the subject, and make sure the background is further away from the subject

    the greater the aperture, the greater the bokeh effect also. a f/2.8 is a larger aperture than a f/4, which is a larger aperture than a f/5.6

  3. #3

    Default Re: Bokeh Pic

    There is no such thing as a "bokeh pic".

    I suggest doing some research. Google this exact sentence:

    "How to blur the background in photos DOF bokeh"
    Alpha

  4. #4

    Default Re: Bokeh Pic

    Quote Originally Posted by Jasleen Chan View Post
    Hi...
    can anyone teach me how to take a bokeh pic?

    i'm still beginner...sorry that i ask the stupid question here..
    Lock focus at your palm, point the camera at a Xmas tree, and you get a bokeh pic.

  5. #5

    Default Re: Bokeh Pic

    Quote Originally Posted by Jasleen Chan View Post
    Hi...
    can anyone teach me how to take a bokeh pic?

    i'm still beginner...sorry that i ask the stupid question here..
    http://www.planetneil.com/tangents/2...blur/#more-314
    this shld help
    5D3|1740L|70200F4L|40

  6. #6

    Default Re: Bokeh Pic

    Quote Originally Posted by Jasleen Chan View Post
    i'm still beginner...sorry that i ask the stupid question here..
    And by the way, there is no such thing as a stupid question. So don't be afraid to ask.
    Welcome to CS~
    5D3|1740L|70200F4L|40

  7. #7

    Default Re: Bokeh Pic

    Quote Originally Posted by Jasleen Chan View Post
    Hi...
    can anyone teach me how to take a bokeh pic?

    i'm still beginner...sorry that i ask the stupid question here..
    No sure what you are asking, but I would interpret your question as "How to take picture with bokeh filter?"

    Try Google 'bokeh filter', or you may try these website for rough ideas:
    1) www.thebokehfilter.com
    2) http://www.diyphotography.net/

  8. #8
    Senior Member engrmariano's Avatar
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    Default Re: Bokeh Pic

    full frame, 50mm, f/1.8, minimum focus distance

  9. #9

    Default Re: Bokeh Pic

    To get that creamy OOF, it's a function with 3 variables:

    aperture size, camera-to-subject distance and subject-to-background distance.

    in equation form: Bokeh number=D2/(D1*x)

    where x is the aperture number(f/x),
    D1 is camera-to-subject distance
    and D2 is subject-to-background distance.


    The bigger the bokeh number the more creamy the bokeh.


    PS: Bokeh is an inexact science. But the equation is kind of neat.

  10. #10
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    Default Re: Bokeh Pic

    I'm also newbie. My lens is 17-50mm F/2.8 Tamron.
    Is it true that I need a more zoom lens to produce a dramatic bokeh effect? Like a 200mm lens?

  11. #11
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    Default Re: Bokeh Pic

    Quote Originally Posted by tiger74 View Post
    I'm also newbie. My lens is 17-50mm F/2.8 Tamron.
    Is it true that I need a more zoom lens to produce a dramatic bokeh effect? Like a 200mm lens?
    You are mixing up focal length with subject and lens distance. Use your 17-50, at AV 2.8, 50mm. Simply take a shot at minimum distance, and compare a shot taken 3 steps away.

  12. #12

    Default Re: Bokeh Pic

    Quote Originally Posted by tiger74 View Post
    I'm also newbie. My lens is 17-50mm F/2.8 Tamron.
    Is it true that I need a more zoom lens to produce a dramatic bokeh effect? Like a 200mm lens?
    No. If you're asking that, it means you haven't really used your lens that much yet.
    Alpha

  13. #13
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    Default Re: Bokeh Pic

    I've read this http://www.planetneil.com/tangents/2...blur/#more-314

    Yeah!! I'm still confused between DoF and bokeh.

    Thanks for the tip! I'll try that 3 steps back comparison. I'll ask again

  14. #14
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    Default Re: Bokeh Pic

    Hi, is this the how to see the difference between bokeh and DoF?
    1st image: at 17mm F/2.8


    2nd image: at 50mm F/2.8 (+ few steps behind)




    Oh no.. how to put picture? I click the image icon.. but..

    http://picasaweb.google.com/fajar.p/PhotographyTests#
    Last edited by tiger74; 29th December 2009 at 04:00 PM. Reason: Edited to correct the image link :) Thanks Rashkae

  15. #15

    Default Re: Bokeh Pic

    Please learn how to properly link images. We have a newbies guide on that for a reason. Read it please.

    Did you read the link mimik07 posted? Or read up a bit on what bokeh actually is?

    Dof is the depth of field. In other words, it's how "deep" the sharp part of the picture is. The rest is blurred. Bokeh is the quality of that OOf area, how pleasing/distracting it is.
    Alpha

  16. #16

    Default Re: Bokeh Pic

    In both the images you can see the bokeh characteristics of the lens.
    Alpha

  17. #17
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    Default Re: Bokeh Pic

    Btw.. just want to add more info.. about Depth of Field...
    Got guidance from someone in IRC channel:

    This is 50mm F2.8


    This is 50mm F11 (notice the background compares to above photo)



  18. #18

    Default Re: Bokeh Pic

    Quote Originally Posted by tiger74 View Post
    Btw.. just want to add more info.. about Depth of Field...
    Got guidance from someone in IRC channel:

    This is 50mm F2.8


    This is 50mm F11 (notice the background compares to above photo)


    Even your object at 50mm f/11 is blur too. Not a good comparison IMO.
    5D3|1740L|70200F4L|40

  19. #19

    Default Re: Bokeh Pic

    There are DOF calculators online, please google for them

    Basically you can vary between focus distance, aperture and object distance, then it will show you the depth of focus range, out of focus range, etc.

  20. #20
    Member Crappinni's Avatar
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    Default Re: Bokeh Pic

    Biggest aperture (not in f number but diameter) and smallest focusing distance. By the way, N = f/D where N is f number, f is focal length and D is diameter of pupil (aperture size).

    Choose somewhere nice to focus on or the shallow DOF will just be a hindrance. Here's an example:

    Canon EF 50mm f/1.2L USM. Focus on eyes for animals (usually).

    Last edited by Crappinni; 30th December 2009 at 11:45 AM.

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