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Polarizing filter for 20mm 1.7?

Discussion in 'Accessories' started by Peezie, Jul 21, 2011.

  1. Peezie

    Peezie Mu-43 Regular

    137
    Mar 30, 2011
    Toronto
    From time to time i keep wondering if i should invest in a circular polarizing filter. I have one on my Canon 20mm f2.8 but only slap it on when im shooting mid day. I was wondering though as i am using my GF1 as a pick up and go camera.

    Could i leave the filter on at all times with out any problems?

    If any of you use one already on this lens which one?

    All thoughts and comments are welcome please...
     
  2. Alf

    Alf Mu-43 Top Veteran

    846
    Mar 23, 2010
    Northeastern Tuscany
    Got it cheap by getting an ancient, mint-in-box linear polarizer. They work with contrast detection af!
     
  3. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    They reduce the light a couple stops, so they become a problem indoors, but otherwise, I have mine on all the time outdoors.
     
  4. KVG

    KVG Banned User

    May 10, 2011
    yyc(Calgary, AB)
    Kelly Gibbons
    I use a linear one all the time outdoors
     
  5. Ned

    Ned Mu-43 Legend

    Jul 18, 2010
    Alberta, Canada
    I only use mine when shooting certain types of shiny/reflective products.
     
  6. Peezie

    Peezie Mu-43 Regular

    137
    Mar 30, 2011
    Toronto
    Ok thanks guys, i will have a look at whats available at my local shops.
     
  7. theunartist

    theunartist Mu-43 Regular

    66
    Jul 5, 2011
    Baltimore, MD
    I use a Circular Polarizer and only used in harsh lighting conditions or photographing something that is reflective, i.e. glass, water, etc.

    Here's a decent link re: Linear v Circular: All about Polarizers - Linear and Circular
     
  8. ~tc~

    ~tc~ Mu-43 Hall of Famer

    Oct 22, 2010
    Houston, TX
    Decent link note we only need a linear polarizer because o mirror
     
  9. Peezie

    Peezie Mu-43 Regular

    137
    Mar 30, 2011
    Toronto
    .

    Sorry this might be a really dumb question but...

    If they reduce light a few stops, can i use exposure compensation to fix this problem?

    I have also read that unless i am shooting in manual it will automatically adjust the SS for me accordingly in AV mode.
     
  10. Peezie

    Peezie Mu-43 Regular

    137
    Mar 30, 2011
    Toronto
    nevermind stupid question i didnt think about it when i wrote the question :redface: