Lens Shade thing

Discussion in 'Photography' started by Zonker Harris, May 6, 2006.

  1. Stupid question here - what's the benefit of the lens shade thing that goes
    on the end of the lens? Is this something that is needed, or can I leave
    it off?
     
    Zonker Harris, May 6, 2006
    #1
    1. Advertisements

  2. If you mean the plastic hood that fits on the end of your lense that
    looks a bit like a modified plant pot, it stops those nasty ringlets
    made by the sun reflecting off the lenses in your camera by allowing
    only light coming in parallel (or near to parallel) to the axis of the lens.

    Some (exaggerated) ascii:

    Non-parallel light blocked
    / /
    / /
    / /
    =======----------------
    /\
    | | <-------------------------
    | | <------------------------- Parallel light allowed to enter lenses
    | | <-------------------------
    \/
    =======----------------
    ^---hood
     
    Brendan Gillatt, May 6, 2006
    #2
    1. Advertisements

  3. Zonker Harris

    Marvin Guest

    It helps when shooting in the direction of the sun, but not
    with the sun as part of the photo. Sunlight can enter the
    lens and be scattered in the camera, making for a bad photo.
    You don't absolutely need it. You can improvise with a
    hand or a sheet of cardboard or or other material.
     
    Marvin, May 6, 2006
    #3
  4. Zonker Harris

    Pat Guest

    As previously mentioned, a sun screen keeps your lens in the shade so
    you don't get glare. That's pretty important. But there are other,
    minor, reasons as well.

    In rain or mist, it also keeps water off of your lens to some extent.

    It keeps "the real world" back a little farther from your glass so it
    lessens the chance of scratching the lens things start flying around
    (footballs, small children, etc).

    It keeps fingers and other sources of dirt off of the lense.

    It provides for a larger-looking lens for those suffering from lens
    envy. It is lens enhancement, so to speak.

    On a 300 mm, f2, it just makes the lens look cool.

    But to answer your question, except for some VERY wide fisheye lens,
    yes, you should have one on the end of every lens.
     
    Pat, May 6, 2006
    #4
  5. Thanks all - I'll put it on!
     
    Zonker Harris, May 6, 2006
    #5
  6. Zonker Harris

    dj_nme Guest

    It might be good idea to keep in mind that when you're using the inbuilt
    pop-up flash on your (d)slr to remove the lenshood.
    It can make a semicircular shadow at the bottom of the image.
     
    dj_nme, May 7, 2006
    #6
  7. Zonker Harris

    Pat Guest

    Good point, esp. if you are using a wide-angle lens shade (because the
    only place that flash works is up-close).
     
    Pat, May 7, 2006
    #7
  8. Zonker Harris

    Colyn Guest

    I personally don't shoot without a hood. It prevents flare and will
    protect the front element if you drop the lens.
     
    Colyn, May 7, 2006
    #8
    1. Advertisements

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.