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Thread: Neutral Density Filter

  1. #1

    Default Neutral Density Filter

    Hi, i am thinking of getting a neutral density filter for my Olympus SP500UZ camera, wondering which type to get and approx how much it will cost?

  2. #2
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    Default Re: Neutral Density Filter

    get a PL-CIR (circular polarizer) instead, it is a 2-stop ND filter and u can control contrast with the polarizer! highly recommended, any of the Hoya SMC CPL or ND filters!

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    Default Re: Neutral Density Filter

    Quote Originally Posted by ronaldjace
    get a PL-CIR (circular polarizer) instead, it is a 2-stop ND filter and u can control contrast with the polarizer! highly recommended, any of the Hoya SMC CPL or ND filters!
    Hmmm.... I don't know if pl-cir can control contrast.... . AFAIK, pl-cir is to reduce reflection (if set correctly). Care to explain?

    Regards,
    Arto.

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    Default Re: Neutral Density Filter

    New to me too.

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    Default Re: Neutral Density Filter

    Quote Originally Posted by ronaldjace
    get a PL-CIR (circular polarizer) instead, it is a 2-stop ND filter and u can control contrast with the polarizer! highly recommended, any of the Hoya SMC CPL or ND filters!
    I learned new something today!!!!

    CIR-PL = ND2

  6. #6

    Default Re: Neutral Density Filter

    Quote Originally Posted by ronaldjace
    get a PL-CIR (circular polarizer) instead, it is a 2-stop ND filter and u can control contrast with the polarizer! highly recommended, any of the Hoya SMC CPL or ND filters!
    is it compatible with my camera? just atatch on is it?

    and approx how much it costs?

    thanks..

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    Default Re: Neutral Density Filter

    the filters i know are screwed in. so u check ur cam got screw threads or not. and also check the diameter lor. different diameter have different price.
    D70s-er Since 2005

  8. #8

    Default Re: Neutral Density Filter

    Quote Originally Posted by zcwnfx
    the filters i know are screwed in. so u check ur cam got screw threads or not. and also check the diameter lor. different diameter have different price.
    from a review page,

    "the barrel around the lens is threaded, and you can use both conversion lenses and filters once the CLA-4 conversion lens adapter (optional) is attached."

    so i assume i have to get the conversion lens adaptor first?


    and



    which is the lens diameter? the inner one or the outer one (measure from the silver rim)?

    sorry, noob here

    edit: think mine is 52mm
    Last edited by bent; 5th June 2006 at 11:49 AM.

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    Default Re: Neutral Density Filter

    the thread one lor.

    normally they will say wats the filter size.
    D70s-er Since 2005

  10. #10
    Senior Member azul123's Avatar
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    Default Re: Neutral Density Filter

    Quote Originally Posted by bent
    from a review page,

    "the barrel around the lens is threaded, and you can use both conversion lenses and filters once the CLA-4 conversion lens adapter (optional) is attached."

    so i assume i have to get the conversion lens adaptor first?


    and



    which is the lens diameter? the inner one or the outer one (measure from the silver rim)?

    sorry, noob here

    edit: think mine is 52mm
    If your camera does not have a threaded circumference, can always try the Cokin version. http://www.cokin.com/shoeholder.html

    ../azul123

  11. #11
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    Default Re: Neutral Density Filter

    Quote Originally Posted by ronaldjace
    get a PL-CIR (circular polarizer) instead, it is a 2-stop ND filter and u can control contrast with the polarizer! highly recommended, any of the Hoya SMC CPL or ND filters!
    A CIR-PL is NOT a 2-stop ND filter.

    A polarizing filter blocks out polarized light (when light is scattered or reflected, it becomes polarized) hence increasing the exposure by 2 stops.

    While a Neutral Density (ND) filters are designed to reduce the amount of light passing through the lens so that a longer exposure is required to record the image.
    Last edited by Francis247; 7th June 2006 at 08:40 PM.
    莫问前程有愧,只求今生无悔. Time pasts, Places changed, Beauty faded, what is left are Photos of Memories…

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    Senior Member denniskee's Avatar
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    Default Re: Neutral Density Filter

    using cp as nd -2 filter is nothing new, see this website, the last statement for "Neutral Density Filters"

    http://www.photo.net/equipment/filters/digital
    photography makes one sees things from all angles.

  13. #13

    Default Re: Neutral Density Filter

    Quote Originally Posted by Francis247
    A CIR-PL is a NOT 2-stop ND filter.

    A polarizing filter blocks out polarized light (when light is scattered or reflected, it becomes polarized) hence increasing the exposure by 2 stops.
    This I understand is use when taking shoots through glass or when reflection need to min.

    Quote Originally Posted by Francis247
    While a Neutral Density (ND) filters are designed to reduce the amount of light passing through the lens so that a longer exposure is required to record the image.
    Can pls explain the improvement this filter make?

  14. #14
    Moderator Francis247's Avatar
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    Default Re: Neutral Density Filter

    Quote Originally Posted by chicken chop
    This I understand is use when taking shoots through glass or when reflection need to min.



    Can pls explain the improvement this filter make?
    For the CIR-PL, I believe you already know, it can be use to eliminate the reflection and glare off surface of water and also used to deepen the blue skies and green vegetation

    For the ND filter, it is not so much of improving the picture but to reduce the amount of light (to increase the exposure) so as to produce blur and introduce a sense of motion.
    莫问前程有愧,只求今生无悔. Time pasts, Places changed, Beauty faded, what is left are Photos of Memories…

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    Default Re: Neutral Density Filter

    Quote Originally Posted by Francis247
    A CIR-PL is a NOT 2-stop ND filter.

    A polarizing filter blocks out polarized light (when light is scattered or reflected, it becomes polarized) hence increasing the exposure by 2 stops.

    While a Neutral Density (ND) filters are designed to reduce the amount of light passing through the lens so that a longer exposure is required to record the image.
    Refer to what my ND PRO has typed earlier.


    Quote Originally Posted by ronaldjace
    get a PL-CIR (circular polarizer) instead, it is a 2-stop ND filter and u can control contrast with the polarizer! highly recommended, any of the Hoya SMC CPL or ND filters!
    He's my PRO

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    Default Re: Neutral Density Filter

    You can try this:

    http://www.singh-ray.com/varind.html

    Regards,
    Arto.

  17. #17

    Default Re: Neutral Density Filter

    so just to clairfy, if if i get a circular polariser, it helps reduce the amt of light entering to some extent but i shud also get a ND filter to further reduce light esp if shooting waterfalls rite?

    is ND 4 or ND 8 more handy (or should i get both?? i dun exactly know by up to how much light it reduces you see

  18. #18
    Moderator Francis247's Avatar
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    Default Re: Neutral Density Filter

    Quote Originally Posted by bent
    so just to clairfy, if if i get a circular polariser, it helps reduce the amt of light entering to some extent but i shud also get a ND filter to further reduce light esp if shooting waterfalls rite?

    is ND 4 or ND 8 more handy (or should i get both?? i dun exactly know by up to how much light it reduces you see
    Hi there,

    It really depends on the light condition, if you want to shoot waterfall, maybe a circular polarizer should be enough unless the condition is really very bright. It will be good to have a ND filter to standby, not really a must.

    As for ND Filter, here is a list, hope that it helps.

    ND2 - Reduce Light Entering the Lens by 1 f-stop
    ND4 - Reduce Light Entering the Lens by 2 f-stops
    ND8 - Reduce Light Entering the Lens by 3 f-stops
    Last edited by Francis247; 11th June 2006 at 10:10 PM.
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  19. #19
    Senior Member zac08's Avatar
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    Default Re: Neutral Density Filter

    Quote Originally Posted by bent
    so just to clairfy, if if i get a circular polariser, it helps reduce the amt of light entering to some extent but i shud also get a ND filter to further reduce light esp if shooting waterfalls rite?

    is ND 4 or ND 8 more handy (or should i get both?? i dun exactly know by up to how much light it reduces you see
    they serve different purposes...

    CPL is to cut off the glare and unwanted reflections (although it does help to reduce the amount of light entering, it does not consitute a ND)

    ND's as the name implies is a Neutral Density filter, meant to reduce the amount of light without interfering with the colour cast. A graduated ND will however help to show up some parts of the scene to be darker and make certain scenes more moody.


    Cheers,
    Michael Lim
    My Flickr Site

  20. #20

    Default Re: Neutral Density Filter

    ok, that helps clear up any confusion. thanks!

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