A&P Polarizing filters

Discussion in 'Lifestyle' started by Smeghead, Oct 25, 2008.

  1. Smeghead

    Smeghead New Member

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    I never used one. Watched a video on youtube and kept thinking to myself that I can get the same effect by pp in LightRoom :dunno:

    Or is the whole point that you won't have to do any pp?
     
  2. Jcolman

    Jcolman OT Supporter

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    You can get a similar effect in PP by darkening the sky, however a polarizer filter does more than simply darken the sky. It increases the contrast between white clouds and blue sky. But it's real usefulness is to cut thru glare and reflections.
     
  3. Smeghead

    Smeghead New Member

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    How much does one of these filters cost? Are there different kinds? Should I get one? Which one should I get?
     
  4. Smeghead

    Smeghead New Member

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    lol, I almost feel convinced already. Someone please recommend me a good filter for my Tamron 17-50 lens.
     
  5. Girth

    Girth ¯\_(ツ)_/¯ OT Supporter

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    B+W, Tiffen, and Hoya make good CP filters. Most run $70-150ish.
     
  6. sanwugi

    sanwugi New Member

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    are polarizing filters usually that expensive?

    anything cheaper??? what would a really cheap one cost>?
     
  7. Valence

    Valence Gustav Refugee

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    cheap = shit. Don't go cheap with stuff that goes in front of your lens.
     
  8. Jcolman

    Jcolman OT Supporter

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    Why would you put a cheap filter on an expensive lens? Buy the best you can afford and you'll only buy it once.
     
  9. Bloke

    Bloke Banned

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    i never saw ANY diffrence when i swapped a cheap for a b+w. :ugh:
    please show me what you saw. if you use a hood even a single coat one will work

    by the way the cheapest place was my local store. tiffen are $1 each, all you want.
     
  10. wizeguy4

    wizeguy4 New Member

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    a guy I work with brought in his 40d with a spl on it and it was very cool. just spin the end and the sky comes to life.

    but now for those have used them more than the 5 minutes that I did, can you tell me if this also kills rainbows? I know polarized lenses in eyeglasses will.
     
  11. Valence

    Valence Gustav Refugee

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    what is spl? a brand?
     
  12. Bloke

    Bloke Banned

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    i think a type-o
     
  13. wizeguy4

    wizeguy4 New Member

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    sorry - cpl = circular polarizer
     
  14. sanwugi

    sanwugi New Member

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    eh my lens isnt that great anyways. i'm probably gonna get a new one in the future so i dont want to buy somethign too expensive
     
  15. percent

    percent deluded

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    Just like with eyeglasses, depending on how you twist them cpls can be used to either kill or enhance rainbows. Taken w cpl on. [​IMG]
     
  16. Smeghead

    Smeghead New Member

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    So these filters are only good for separating the clouds from the sky.

    Meh.
     
  17. Girth

    Girth ¯\_(ツ)_/¯ OT Supporter

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    or just make your picture pop w/ out any post production. :o

    This one is taken w/ the D80, Sigma 18-200 OS and a Hoya CP.
    [​IMG]
     
  18. Smeghead

    Smeghead New Member

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    ^^ straight from the cam without any PP?
     
  19. Girth

    Girth ¯\_(ツ)_/¯ OT Supporter

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    straight from the cam, no PP. :o

    here's the info...

     
  20. Smeghead

    Smeghead New Member

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    And how would it look like without the filter? :noes:
     
  21. Girth

    Girth ¯\_(ツ)_/¯ OT Supporter

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    without...
    [​IMG]

    with...
    [​IMG]
     
  22. adamlewis88

    adamlewis88 New Member

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    As has been said, their real use is to kill reflections. When light is reflected off any surface, it is polarized in a certain direction. Turning to the polarized filter in front of your lens can then either allow all of that reflected light in or, if you rotate it 90° it will stop the transmission of that reflected light.

    People dont realize how much light you see if reflected/garish light. CPL filters can cut the reflection in a sky (making it look more blue), cut reflection on landscapes (making them look more green), cut reflections on top of water, or even cut the reflections when shooting through a glass window.

    CPL filters were made because regular PL filters supposedly mess with AF in cameras.They dont allow the beam splitter of phase detection AF systems to work properly. However, Ive never seen this happen in person. CPL filters are always more expensive than PL filters.
     
  23. adamlewis88

    adamlewis88 New Member

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