What type of lens was used in this picture?

Discussion in 'Photography Beginners' Forum' started by tactile, Jul 20, 2009.

  1. tactile

    tactile TPF Noob!

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  2. tsaraleksi

    tsaraleksi TPF Noob!

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    Could be anything... there's nothing about that photo that indicates the use of any one particular lens.
     
  3. musicaleCA

    musicaleCA TPF Noob!

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    That effect is caused by a wide-open aperture. Looks like the focus point is a bit closer to the camera than the man in the frame.
     
  4. tactile

    tactile TPF Noob!

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    Well, I'm looking to purchase a lens that is capable of focusing on one subject, and blurring the background- do you know of any?
     
  5. tactile

    tactile TPF Noob!

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    Oh alright, how would I go about opening the aperture to that degree?
     
  6. Baaaark

    Baaaark TPF Noob!

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    Start with a 50mm 1.8. Depending on what brand of camera you have.

    You get that desired effect by making your aperture or f-stop as low of a number as possible. This effect will not be able to be achieved on point and shoot cameras, though.
     
  7. tactile

    tactile TPF Noob!

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    Alright thank you. So confession; I don't know how/ which way to adjust the aperture. I know its the A mode. I'm using a nikon D40- the highest number when i turn it to the right it will go is 32 right now, it also has little [ + ] and two others that go vertically- what are those and what do they do?
     
  8. musicaleCA

    musicaleCA TPF Noob!

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    Hrmm...You need to learn your exposure. F-stops, shutter speed, and ISO. Learn how those interrelate and effect your image, first, then worry about getting nice bokeh (the blurry background). Start by reading your manual, front to back. Once you have your bearings and how depth of field works, and how you would achieve strong bokeh, then it's time to consider a lens that will get you there.

    Where are Samanax's links when we need 'em? :greenpbl:

    Edit: Ah, found 'em.

    Digital Photography Tips For Beginners

    Digital Photography Composition Tips
     
  9. Dao

    Dao No longer a newbie, moving up!

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    In Aperture, the smaller the number means the larger the aperture.

    The aperture of F/4.0 is larger than F/5.6


    So if you are looking for a lens that can produce an image that the subject is in focus, the background is out of focus, you can look for a FAST lens in which has a smaller Maximum Aperture (i.e. F/1.8)

    Also a telephoto lens can produce the blur background effect with a relatively larger aperture setting (i.e. F/5.6)

    But you may need to read more about Depth of Field. It is because a large aperture will not guarantee you such effect. For example, you use a 50mm F/1.8 lens and shoot at F/1.8 aperture. The subject is 100ft away from your camera and the background is about 150ft away from the camera. You may notice that both the subject and the background are in focus.
     
  10. redtippmann

    redtippmann TPF Noob!

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    all right if you want a low DOF you have to open the irus (sg1 reference ;) ) you want it to be the lowest number. so if you hsve a kit lens that would be around 3 or 4. But in that picture nothing is in focus (that i can tell) so you would switch the auto focus to manual and twist the focus ring till you get the desired effect.

    edit: ok well I type slow so the two post above me explained it better.
     
  11. Samanax

    Samanax TPF Noob!

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  12. vd853

    vd853 TPF Noob!

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    Either it was carefully taken with a prime lens, then cropped, or it was taken using a tilt-shift lens.
     

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