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Thread: What is the purpose of Lens Hood?

  1. #1
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    Default What is the purpose of Lens Hood?

    hi all,

    could any pse tell me what is the purpose/function of a lens hood? is it a must?

    thanks a lot


  2. #2
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    Quote Originally Posted by plinius
    hi all,

    could any pse tell me what is the purpose/function of a lens hood? is it a must?

    thanks a lot

    Its mostly used to prevent flare on wide lenses. Do a search on the forum. It has been discussed before.

  3. #3
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    prevent flare and protect the lens. sometimes, it also make the setup look more professional or intimitading

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    thanks for the reply

    Quote Originally Posted by mpenza
    prevent flare and protect the lens. sometimes, it also make the setup look more professional or intimitading

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    Quote Originally Posted by mpenza
    prevent flare and protect the lens. sometimes, it also make the setup look more professional or intimitading
    To put it in another way, it makes you look pro.

    Regards
    CK

  6. #6
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    In some situation, where many photographers are cramp together, there will be many chances that your lens will hit others lens, hit the wall, rail, tree etc. A lens hood (hard type) will minimize the damage to your precious lens.

  7. #7
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    It's also for irritating you when there isn't enough space in your camera bag. They just don't seem to fit in anywhere.

    They're also for slowing you down when you need to change lenses.

  8. #8

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    To prevent the hand from falling off when you are stroking the lens?

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    Quote Originally Posted by ST1100
    It's also for irritating you when there isn't enough space in your camera bag. They just don't seem to fit in anywhere.

    They're also for slowing you down when you need to change lenses.
    I agree with ST1100. Sometimes, it can be rather irritating putting on and removing it.

    Aside from looking "professional", the diameter of the hood is generally bigger than the lens' diameter itself. When the hood is put on the lens in reverse, bigger space is necessary when you have to put in the camera bag.

    Sometimes, I just kept the hood at home unless I need to use it.

    Cheers,

    Luc

  10. #10

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    how much does one lens hood costs?

  11. #11
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    Quote Originally Posted by plinius
    hi all,

    could any pse tell me what is the purpose/function of a lens hood? is it a must?

    thanks a lot

    Original lens hoods are usually optimized for the specific lens. Ie, different lenses have different lens shape/size/cost lens hoods. You can put on a shorter lens hood than the original, but you will not get maximum protection. You can put on a longer one, but you risk vignetting or even pure black corners.

    Some original Canon lens hoods also have a velvety material on the inside to prevent reflections from the lens hood affecting the picture.

    After a while, you will know the situations when you need a hood - usually under bright sunlight. Stray (not in the frame) sunlight hitting your front element will degrade the picture significantly. Fast lenses (F2.0 and faster) are especially prone to flare when shooting wide.

    W/O a hood, you can use your left hand to shade the front element (and shoot with right hand), or you can deliberate position yourself in the shade, or get someone to shield you with an umbrella. i use the first method. Some people are religious about putting the hood on. YMMV.

    An hood can cost anywhere from $10 to $100, depending on the lens. There are cheaper third party ones around, about $20.

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