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Thread: Filters galore...

  1. #1
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    Default Filters galore...

    Hi everyone,

    Can anyone explain what is the difference and purpose of these filters...

    ND filter
    Haze filter
    Skylight filter
    Polarising filter

  2. #2
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    Default Re: Filters galore...

    eh?

    ND: to reduce light by a certain amount of stops depending on the ND value. e.g. ND4, ND8.

    Haze: same as UV filter

    Skylight: to slightly warm colours. 1A is a little pinkish, 1B is stronger.

    Polariser: Circular polariser is to reduce reflection and to make blue skies bluer. basically it polarises the light.

    this is just an overview la. do a google.

  3. #3
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    Default Re: Filters galore...

    Quote Originally Posted by Isaiahfortythirtyone
    eh?

    ND: to reduce light by a certain amount of stops depending on the ND value. e.g. ND4, ND8.

    Haze: same as UV filter

    Skylight: to slightly warm colours. 1A is a little pinkish, 1B is stronger.

    Polariser: Circular polariser is to reduce reflection and to make blue skies bluer. basically it polarises the light.

    this is just an overview la. do a google.
    Hmm... thanks for your advise.

    For ND, how do you choose what value to use?

    For polariser, to make sky bluer, is there a trick to it? or just point n shoot?

  4. #4

    Default Re: Filters galore...

    Quote Originally Posted by yehosaphat
    Hmm... thanks for your advise.

    For ND, how do you choose what value to use?

    For polariser, to make sky bluer, is there a trick to it? or just point n shoot?
    Basically polariser doesn't make the sky bluer than it already is. The polariser just helps to cut down the glare (where light comes form various directions e.g. reflections) and only allow those light coming from determined direction (polarized the light going into your lense and camera); hence it reduces the amount of light and therefore have the effect of darkening (sometimes one have to increase exposure to compensate). The brighter objects, e.g. the blue sky, will be more prominently affected and hence the blue will appear bluer. If you use a circular polarising filter you just need to point and shoot; otherwise, you will have to adjust your polarising angle (by turning the filter) to get the correct amount of polarisation you want.

  5. #5
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    Default Re: Filters galore...

    Quote Originally Posted by ob1canob
    If you use a circular polarising filter you just need to point and shoot; otherwise, you will have to adjust your polarising angle (by turning the filter) to get the correct amount of polarisation you want.

    Not true!

    You still need to turn the filter even if it's a Circular Polariser.

    The difference between Circular and Linear Polarisers is that some Auto-focus systems have problems when used with Linear Polarisers. Therefore, there is a need for circular polarisers for such cameras so that the AF can work.
    It doesn't mean that Circular Polarisers cut-down on reflections from all angles, you still need to turn the filter to get the correct amount of polarisation.

  6. #6
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    Default Re: Filters galore...

    filters of all kinds have been explained, discussed and argued in past threads. pls do a search either in CS or google. Let me give you a few freebies

    http://www.nelsontan.com/articles/filters.html
    http://www.thkphoto.com/products/hoya/index.html
    http://medfmt.8k.com/bronfiltersp.html

  7. #7
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    Default Re: Filters galore...

    Wow, thanks for the comments and the links!

  8. #8
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    Default Re: Filters galore...

    Quote Originally Posted by foxtwo
    filters of all kinds have been explained, discussed and argued in past threads. pls do a search either in CS or google. Let me give you a few freebies

    http://www.nelsontan.com/articles/filters.html
    http://www.thkphoto.com/products/hoya/index.html
    http://medfmt.8k.com/bronfiltersp.html

    Hi ,

    I am interested to buy a UV (0) filter just to protect the lens from my Nikon D50. How much would be a reasonable price to pay for an HOYA brand?

    Thanks
    WL

  9. #9

    Default Re: Filters galore...

    Quote Originally Posted by WILLIAM2000
    Hi ,

    I am interested to buy a UV (0) filter just to protect the lens from my Nikon D50. How much would be a reasonable price to pay for an HOYA brand?

    Thanks
    WL

    Not more than 30SGD...

    Look in the buy and sell, there are lots of filters for sale.

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