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8 Comments

  1. teejaygee
    February 13, 2010 @ 9:44 pm

    Depth of field is all about the f-stop. The higher the number, the deeper the field. Of course the shutter speed goes down as the f-stop goes up, so get a tripod.

    You use this effect in the opposite way for sports — wide open aperture (low f-number) means the player stands out from the blurry background, and you get a faster shutter speed to freeze the action.

    In our next lesson, using wide angle or telephoto lenses to define the “space” of the depth of field.

    • Gee Why
      February 14, 2010 @ 10:51 am

      Thanks for the lesson

  2. teejaygee
    February 13, 2010 @ 11:44 am

    Depth of field is all about the f-stop. The higher the number, the deeper the field. Of course the shutter speed goes down as the f-stop goes up, so get a tripod.

    You use this effect in the opposite way for sports — wide open aperture (low f-number) means the player stands out from the blurry background, and you get a faster shutter speed to freeze the action.

    In our next lesson, using wide angle or telephoto lenses to define the “space” of the depth of field.

    • geewhy
      February 14, 2010 @ 10:51 am

      Thanks for the lesson

  3. Eugene
    February 14, 2010 @ 3:41 am

    So – with the T1i there are a couple approaches to depth of field. Personally I prefer using Av mode (i.e. "aperture priority"), though they do have the, wossit, creative control mode that does the same thing, only with friendly wording instead of 'aperture.'

    With regards focus, when you need specific focus, change it to manual center-point focusing – even if you don't want the focus point centered, you can take the focus with a half-press then shift the composition frame to how you want it – alTHOUGH one of the biggest reasons to *have* 15 megapixels in the first place is to be able to crop the hell out of an image and still have a good leftover resolution.

    I love my T1i – I keep the kit lens around as it is basically my widest angle lens (I don't need a big FOV often, as scenery is not my main objective) but don't use it much.

    My two main lenses are the EF 50mm prime f/1.4 USM and the EF 70-300 tele zoom IS USM. Between the two of those I get must about everything I want.

    http://flickr.com/yevgene 🙂

    • Gee Why
      February 14, 2010 @ 10:52 am

      Thanks, still getting used to moving from the point-and-shoot world.

  4. Eugene
    February 14, 2010 @ 3:41 am

    So – with the T1i there are a couple approaches to depth of field. Personally I prefer using Av mode (i.e. "aperture priority"), though they do have the, wossit, creative control mode that does the same thing, only with friendly wording instead of 'aperture.'

    With regards focus, when you need specific focus, change it to manual center-point focusing – even if you don't want the focus point centered, you can take the focus with a half-press then shift the composition frame to how you want it – alTHOUGH one of the biggest reasons to *have* 15 megapixels in the first place is to be able to crop the hell out of an image and still have a good leftover resolution.

    I love my T1i – I keep the kit lens around as it is basically my widest angle lens (I don't need a big FOV often, as scenery is not my main objective) but don't use it much.

    My two main lenses are the EF 50mm prime f/1.4 USM and the EF 70-300 tele zoom IS USM. Between the two of those I get must about everything I want.

    http://flickr.com/yevgene 🙂

    • geewhy
      February 14, 2010 @ 10:52 am

      Thanks, still getting used to moving from the point-and-shoot world.