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Thread: How does Close-up Lens Filter works?

  1. #1
    Member akszaksz's Avatar
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    Default How does Close-up Lens Filter works?

    I tried search internet but can't seems to find out how it works.


    Hmm, take Canon kit lens 18-55 for eg, using a close-up filter.
    How close can it enhance you over your len's minimal focus distance?


    I'm not going to get one, just curious how it works & how well it can enhance.
    Thanks in advance.
    http://www.akkuaphotography.com

  2. #2
    Senior Member Numnumball's Avatar
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    Default Re: How does Close-up Lens Filter works?

    Quote Originally Posted by akszaksz View Post
    I tried search internet but can't seems to find out how it works.


    Hmm, take Canon kit lens 18-55 for eg, using a close-up filter.
    How close can it enhance you over your len's minimal focus distance?


    I'm not going to get one, just curious how it works & how well it can enhance.
    Thanks in advance.
    Closeup filters are merely an additional optical element to your current setup that allow your non-dedicated macro lens or even deciated macro lens to have a closer than the minimum focusing distance capability. Each of different brand/labels comes wth different diopter strength. To get a clear shot of ur subject in focus, u need to go real close..

    Enhance only in magnification but degrade ur IQ (though some nt so significantly)

    HTH
    I turned PRO in diaper chg!
    My Flickr|My Son

  3. #3

    Default Re: How does Close-up Lens Filter works?

    In short, it acts like a magnifying glass and allows you to go closer to your subject.

  4. #4

    Default Re: How does Close-up Lens Filter works?

    From memory,

    Distance = 1000mm/Diopter power

    Eg: A DCR-250 is an 8-diopter filter. Distance would thus be 1000/8 = 125mm.

  5. #5
    Moderator ed9119's Avatar
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    Default Re: How does Close-up Lens Filter works?

    Quote Originally Posted by akszaksz View Post
    I tried search internet but can't seems to find out how it works.

    Thanks in advance.

    Let me Google that for you

    You're welcome.....
    shaddap and just shoot .... up close
    Walkeast

  6. #6

    Default Re: How does Close-up Lens Filter works?

    Quote Originally Posted by ed9119 View Post
    Let me Google that for you

    You're welcome.....
    very impressive

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