Polarizing filters - yes/no?

Discussion in 'Digital Video' started by matteusclement, Oct 29, 2012.

  1. macrumors 65816

    matteusclement

    Joined:
    Jan 26, 2008
    Location:
    victoria
    #1
    I love em.
    I use them alot and now I am thinking that maybe I use them too much.
    can I be mucking up my footage with it?
    I shoot on a 5dii and with circular polarizers. Am I better off with just a lens hood?
     
  2. macrumors 603

    thekev

    Joined:
    Aug 5, 2010
    #2
    They don't do the same thing at all. A hood is there to block all light from outside the displayed field of view with the goal of preventing direct illumination on the optics. This causes internal reflections within the lens and a reduction in perceived contrast due to increased exposure overall while being decoupled from the objects viewed in the scene. The circular polarizers sold for camera equipment cut reflected light at certain angles. This tends to have a greater impact on indirect reflections given the greater variation in the way such things face the camera. They are not the same thing. You should always use a hood as long as it doesn't increase vignetting. Whether to use a polarizer can be more up for debate. It will cut some overall light, so it does require more time per frame or a larger aperture setting.

    This seems more like a taste thing to me, but you should be more concerned with your goals for the footage and what you really like about the look rather than the method of adjustment. You don't give much indication of what you're trying to accomplish.
     
  3. macrumors 6502a

    Joined:
    Nov 15, 2007
    #3
    On bright sunny days between 10am to 3pm I have always use a polarizer. I like the look it brings. It is also great for shooting thru the windshield during this time period. A lens hood can be beneficial when the shooting angle is near a bright light source. A polarizer can bring out the deep blue hues of a sky unlike anything else. And it also allows greater saturation when shooting foliage during that same time frame.
     
  4. thread starter macrumors 65816

    matteusclement

    Joined:
    Jan 26, 2008
    Location:
    victoria
    #4
    BOOM! Thank you for the tip.
     

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