Page 1 of 3 123 LastLast
Results 1 to 20 of 51

Thread: How to increase background blur?

  1. #1
    Member
    Join Date
    Sep 2006
    Location
    East Coast
    Posts
    230

    Default How to increase background blur?

    I'm using my Sony NEX5N w Tamron 60mm via alpha adaptor. I'm pretty happy with the result for portrait purpose mostly.
    But at f2, are there any other techniques to achieve even more background blur other than the obvious swap to a faster lense?
    Reason I ask is because at the same f2 aperture, some of my pictures' background seem to have more blur than others... So wondering if other settings can affect this aspect of photography?
    Thks!
    Sony NEX-5N| A6000| SEL16F28+UWA| SEL1855| SEL35F18| SEL50F18| SEL18200LE| SEL1670Z

  2. #2

    Default Re: How to increase background blur?

    Quote Originally Posted by vagus View Post
    I'm using my Sony NEX5N w Tamron 60mm via alpha adaptor. I'm pretty happy with the result for portrait purpose mostly.
    But at f2, are there any other techniques to achieve even more background blur other than the obvious swap to a faster lense?
    Reason I ask is because at the same f2 aperture, some of my pictures' background seem to have more blur than others... So wondering if other settings can affect this aspect of photography?
    Thks!
    Get subject to stand further from the background.

    Or get yourself to stand closer to the subject.

    Very basic principles of photography.

  3. #3
    Moderator
    Join Date
    Nov 2010
    Location
    Somewhere
    Posts
    3,444

    Default Re: How to increase background blur?

    Quote Originally Posted by JasonB View Post
    Get subject to stand further from the background.

    Or get yourself to stand closer to the subject.

    Very basic principles of photography.
    To add on: or a combination of the both.. Subject far far from background and stand near near the subject..
    Too many great equipments but too little quality photos. [My Flickr] | [My Blog]

  4. #4

    Default Re: How to increase background blur?

    Quote Originally Posted by SkyStrike View Post
    near near the subject..
    Subject to the MFD of the lens, of course.

  5. #5

    Default Re: How to increase background blur?

    Quote Originally Posted by JasonB View Post
    Get subject to stand further from the background.

    Or get yourself to stand closer to the subject.

    Very basic principles of photography.
    Yup, exactly right. And also discussed in the "Newbie to photography" guides we have here.
    Alpha

  6. #6

    Default Re: How to increase background blur?

    Yah... I was also thinking this should go to Newie section.
    D7100,SB910,17-50/2.8OS,105/2.8VR,85/1.8D,2xE-M1,O60/2.8,12-40/2.8,35-100/2.8,14-42,LX100

  7. #7
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,422

    Default Re: How to increase background blur?

    No fast lens will blur the background 1m behind the subject if the subject is 10m away. But every kit lens can blur the background 10m behind a subject that is 1m away from the camera.
    EOS

  8. #8
    Member
    Join Date
    Sep 2006
    Location
    East Coast
    Posts
    230

    Default

    Quote Originally Posted by JasonB

    Get subject to stand further from the background.

    Or get yourself to stand closer to the subject.

    Very basic principles of photography.
    Thanks for the reply, this part I understand, just that there r situations where positioning of the subject with relation to background cannot be adjusted due to space constraint or simply an impromptu shot. Also if i go too close to the subject using a prime lens, i lose the amount of background that I had wanted to tell the story...
    Sony NEX-5N| A6000| SEL16F28+UWA| SEL1855| SEL35F18| SEL50F18| SEL18200LE| SEL1670Z

  9. #9
    Member
    Join Date
    Sep 2006
    Location
    East Coast
    Posts
    230

    Default

    Quote Originally Posted by Octarine
    No fast lens will blur the background 1m behind the subject if the subject is 10m away. But every kit lens can blur the background 10m behind a subject that is 1m away from the camera.
    I think you understand my dilemma, are there other ways to "optimize" the shot given that the distence are limited? Eg, control of lighting, exposure, etc
    I was thinking maybe some fine combination of adjustments may improve it slightly?
    Sony NEX-5N| A6000| SEL16F28+UWA| SEL1855| SEL35F18| SEL50F18| SEL18200LE| SEL1670Z

  10. #10

    Default Re: How to increase background blur?

    Quote Originally Posted by vagus View Post
    Thanks for the reply, this part I understand, just that there r situations where positioning of the subject with relation to background cannot be adjusted due to space constraint or simply an impromptu shot. Also if i go too close to the subject using a prime lens, i lose the amount of background that I had wanted to tell the story...
    Then just stop down the lens to f/2.8 or f/4.

    But I thought you are asking to increase blur in the first place? Check your first post.
    WTB Manfrotto RC4 L Bracket

  11. #11
    Member
    Join Date
    Sep 2006
    Location
    East Coast
    Posts
    230

    Default

    Quote Originally Posted by sjackal

    Then just stop down the lens to f/2.8 or f/4.

    But I thought you are asking to increase blur in the first place? Check your first post.
    Sorry if I did not express myself correctly, when i say "lose background", I don't mean it gets too blur... I meant the expanse of background that is captured within the frame of the shot.

    Ie. I don't want to get too close that i only capture the subject but left with only a sliver of background that is nicely blurred out... That way I might as well take a passport type photo....
    Sony NEX-5N| A6000| SEL16F28+UWA| SEL1855| SEL35F18| SEL50F18| SEL18200LE| SEL1670Z

  12. #12

    Default Re: How to increase background blur?

    Quote Originally Posted by vagus View Post
    Thanks for the reply, this part I understand, just that there r situations where positioning of the subject with relation to background cannot be adjusted due to space constraint or simply an impromptu shot. Also if i go too close to the subject using a prime lens, i lose the amount of background that I had wanted to tell the story...
    Your welcomed. Its about the focal length, if you use a longer lens, then the perspective you have will be less background. If you use a wider lens, then you can include more background.

    Quote Originally Posted by sjackal View Post
    Then just stop down the lens to f/2.8 or f/4.

    But I thought you are asking to increase blur in the first place? Check your first post.
    I think he is asking about perspective now instead of DOF, though he initially did ask about DOF.

    Quote Originally Posted by vagus View Post
    Sorry if I did not express myself correctly, when i say "lose background", I don't mean it gets too blur... I meant the expanse of background that is captured within the frame of the shot.

    Ie. I don't want to get too close that i only capture the subject but left with only a sliver of background that is nicely blurred out... That way I might as well take a passport type photo....
    Then simply; don't stand too close.

    Or use a wider angle lens so that you get more environment in. If you dont want to change lens, then stand back a bit more. If no space to stand back, then: too bad. Somethings just cannot be.

    Or you can bring a tripod with L plate, take multiple pictures and stitch into panoramas.

  13. #13

    Default Re: How to increase background blur?

    If all else fail, PP it.

  14. #14
    Moderator Octarine's Avatar
    Join Date
    Jan 2008
    Location
    Pasir Ris
    Posts
    12,422

    Default Re: How to increase background blur?

    Quote Originally Posted by vagus View Post
    I think you understand my dilemma, are there other ways to "optimize" the shot given that the distence are limited? Eg, control of lighting, exposure, etc
    I was thinking maybe some fine combination of adjustments may improve it slightly?
    Yes, there are other ways, but many are not related to camera settings. Read up about the basics of composition with regards to subject isolation. Blurring the background is only one method, others are positioning of the subject in the frame, focal length and framing, colours and patterns (be careful what's in the background), leading lines and many others. Don't overdo it with f/2 and other small numbers, some guys here get carried away with thin DoF, resulting rather in technical case studies than a pleasing picture (have a look at some food pictures where only a small part of the dish is in focus).
    Camera settings play a part when setting the exposure, notably here the metering method and the overall light situation in the frame. When using flash, read up about blending ambient light with flash light. Bright areas catch attention.
    EOS

  15. #15
    Moderator daredevil123's Avatar
    Join Date
    Oct 2005
    Location
    lil red dot
    Posts
    21,627
    Blog Entries
    1

    Default Re: How to increase background blur?

    Quote Originally Posted by vagus View Post
    I think you understand my dilemma, are there other ways to "optimize" the shot given that the distence are limited? Eg, control of lighting, exposure, etc
    I was thinking maybe some fine combination of adjustments may improve it slightly?
    You cannot bend the laws of physics...

  16. #16

    Default

    Can make use of a tilt-shift lens too.

  17. #17
    Deregistered allenleonhart's Avatar
    Join Date
    Sep 2008
    Posts
    3,656
    Blog Entries
    1

    Default Re: How to increase background blur?

    Quote Originally Posted by daredevil123 View Post
    You cannot bend the laws of physics...
    there is... one technique though that can do that i think.

    not exactly bend the laws, but its a combination of all of the above.

    Brenizer Method


    my suggestion is to not shoot at full res per shot though. keep it small. stack many small shots together. you shld get your blur background.
    Last edited by allenleonhart; 21st October 2012 at 06:58 PM.

  18. #18
    Moderator daredevil123's Avatar
    Join Date
    Oct 2005
    Location
    lil red dot
    Posts
    21,627
    Blog Entries
    1

    Default Re: How to increase background blur?

    Quote Originally Posted by allenleonhart View Post
    there is... one technique though that can do that i think.

    not exactly bend the laws, but its a combination of all of the above.

    Brenizer Method


    my suggestion is to not shoot at full res per shot though. keep it small. stack many small shots together. you shld get your blur background.
    That is not bending laws of physics la. That is a get around. But it requires the subjects to stand still for a while. And it wouldn't work in some situations, for example, when shooting a portrait in a busy street with many people moving around.

    Tilt shift is another. But buying a tilt shift lens is not that cheap. TS can even consider moving to FF cam body first.
    Last edited by daredevil123; 21st October 2012 at 08:00 PM.

  19. #19
    Deregistered allenleonhart's Avatar
    Join Date
    Sep 2008
    Posts
    3,656
    Blog Entries
    1

    Default Re: How to increase background blur?

    Quote Originally Posted by daredevil123 View Post
    That is not bending laws of physics la. That is a get around. But it requires the subjects to stand still for a while. And it wouldn't work in some situations, for example, when shooting a portrait in a busy street with many people moving around.

    Tilt shift is another. But buying a tilt shift lens is not that cheap. TS can even consider moving to FF cam body first.
    thats why say its not exactly bending the laws of physics haha... its just a work around! solves his problem as far as i am concerned for now hahaha

  20. #20
    Moderator catchlights's Avatar
    Join Date
    Sep 2004
    Location
    Punggol, Singapore
    Posts
    21,901

    Default Re: How to increase background blur?

    photoshop.....

    yeah... don't want to move close, don't want to lose background....... this can not that can not, so yeah photoshop
    Shoot to Live, Live to Shoot
    www.benjaminloo.com | iStock portfolio

Page 1 of 3 123 LastLast

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
  •