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Thread: Advice on polarized lenses

  1. #1

    Default Advice on polarized lenses

    Hi guys im looking for some advice on polarized lenses.

    What are the benefits of using polarized lenses on say a wideangle lens versus a telephoto zoom lens?

    Also, does anyone have any recommendation for a particular brand?

    Thanks guys and please pardon my "noobness".

    Joshua

  2. #2
    Member LexLim's Avatar
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    Default Re: Advice on polarized lenses

    Quote Originally Posted by oaheey View Post
    Hi guys im looking for some advice on polarized lenses.

    What are the benefits of using polarized lenses on say a wideangle lens versus a telephoto zoom lens?

    Also, does anyone have any recommendation for a particular brand?

    Thanks guys and please pardon my "noobness".

    Joshua
    It's called a polarizing filter
    Nikon D60|18-55|55-200|105 f/2.5 ai|35 f/1.8|
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  3. #3
    Senior Member wildcat's Avatar
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    Default Re: Advice on polarized lenses

    If you need to ask, then you don't really need it. It's another BBB virus someone inflicted on you.

    Anyway a minor correction, but I believe you mean a polarising filter?

  4. #4
    Senior Member sinned79's Avatar
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    Default Re: Advice on polarized lenses

    u mean filters on camera lenses or camera lenses itself?

  5. #5
    Senior Member wildcat's Avatar
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    Default Re: Advice on polarized lenses

    Quote Originally Posted by LexLim View Post
    It's called a polarizing filter
    Americans

  6. #6

    Default Re: Advice on polarized lenses

    polarizer filter + lens = polarized lens

    Anyway, choice of lens (wideangle vs telephoto) should be made in consideration in whichever suits your subject. There have been discussions of "uneven" polarization (don't know the official term), if when we use the polarizer on the wide angle.
    Last edited by ahbian; 13th April 2010 at 03:38 PM.

  7. #7
    Member LexLim's Avatar
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    Default Re: Advice on polarized lenses

    Quote Originally Posted by wildcat View Post
    Americans
    Nikon D60|18-55|55-200|105 f/2.5 ai|35 f/1.8|
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  8. #8

    Default Re: Advice on polarized lenses

    Like i said guys, pardon my noobness.

    I believe i meant polarizing filters.

  9. #9

    Default Re: Advice on polarized lenses

    TS is not wrong.

    Technically a filter as we know it is also referred to as a lens because it is a lens. For all intent and purpose, it serves the same function, so the terms 'filter' and 'lens' are interchangeable, and have been used in the photographic industry, even though the more technical term normally used is 'objective', and in most places, the majority refer to what you're talking about as a 'filter' although in some parts of Europe, to a much lesser extent, it's also referred to as a 'lens', usually with technical specs stated before, e.g., close-up lens, polarizing lens etc.

    The use of a polarizing element in front of your camera lens, whether a wide angle or telephoto, serves the same purposes - to alter the polarization of light waves.

    In more common photographic applications, this is done to either minimize or eliminate reflections off non-metallic surfaces, or in applications such as landscape photography, to darken or deepen blue skies.

    There are other scientific and industrial applications of polarized light, although less common to ordinary folks like you and me.

    And yes, further reading is recommended. Google 'Polarized light and filters in photography'.

    If you really want to know what's going on: http://www.physicsclassroom.com/class/light/U12l1e.cfm

    Hope this helps.
    Last edited by Dream Merchant; 13th April 2010 at 04:11 PM.

  10. #10

    Default Re: Advice on polarized lenses

    Thanks alot Dream Merchant,

    I tend to do quite abit of outdoor photography in bright sunlight settings. Some article i read recently gave me the impression that polarized filters when used, increase the contrast of pictures and therefore tend to darken/deepen skies. However I was puzzled as to whether the polarizing filter would only darken the blue parts of the sky or also the white portions, i.e. the clouds.

    Thanks for clearing that up.

    J

  11. #11
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    Default Re: Advice on polarized lenses

    The polariser increases contrasts by filtering out unwanted reflections and cutting down on stray light (stray wavelengths). Your white clouds will remain white =)

  12. #12

    Default Re: Advice on polarized lenses

    Quote Originally Posted by oaheey View Post
    What are the benefits of using polarized lenses on say a wideangle lens versus a telephoto zoom lens?

    Also, does anyone have any recommendation for a particular brand?

    Thanks guys and please pardon my "noobness".

    Joshua
    that is a very weird first question you have. using CPL(circular polariser) on wide angle lens or telephoto lens will yield same effect.

    in fact you should take note of the fact that for wide angle lenses you have to watch out for what is known as UNEVEN POLARISATION, google will help you a lot with understanding what this is.

    hoya is decent brand.

  13. #13

    Default Re: Advice on polarized lenses

    It's back to physics again. Polarization will be the same for both wide-angle and tele lenses.

  14. #14

    Default Re: Advice on polarized lenses

    hello, may i know where to get linear polarising filters?

  15. #15
    Senior Member Diavonex's Avatar
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    Default Re: Advice on polarized lenses

    With polarising filter



    Without polarising filter



    With polarising filter



    Without polarising filter

    Last edited by Diavonex; 6th June 2010 at 02:25 PM.

  16. #16
    Senior Member Diavonex's Avatar
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    Default Re: Advice on polarized lenses

    Quote Originally Posted by ahbian View Post
    polarizer filter + lens = polarized lens

    Anyway, choice of lens (wideangle vs telephoto) should be made in consideration in whichever suits your subject. There have been discussions of "uneven" polarization (don't know the official term), if when we use the polarizer on the wide angle.
    You'll get weird effects with a polarizing filter on ultra-wide angle lens.

  17. #17
    Senior Member Diavonex's Avatar
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    Default Re: Advice on polarized lenses

    Quote Originally Posted by mintaka View Post
    hello, may i know where to get linear polarising filters?
    Are you sure you want a linear polarising filter? They are normally for pre-1970 or view camera.

  18. #18

    Default Re: Advice on polarized lenses

    sorry TS borrow your tread. may i know what is the different between multi coated filter and polarized filter. i am using vitacom multi coated uv filter. i tried to get a clear blue sky but the result is is not as blue as what i am expected

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  19. #19
    Senior Member Diavonex's Avatar
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    Default Re: Advice on polarized lenses

    You need polarising or GND filter to get nice blue sky; sample below taken with polarising filter.


  20. #20

    Default Re: Advice on polarized lenses

    so what is the different between these two? i thought multi coated is able to reduce the reflection but not sure about the blue sky. is there any polarized filter able to attach to my existing filter? sorry i am a newbie please pardon me thanks
    Last edited by alf6901; 7th June 2010 at 10:20 AM.
    Poor Man With Expensive Hobby

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