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Thread: Genus variable ND filter.

  1. #1

    Join Date
    Nov 2011
    Location
    Barrie Ontario, Canada
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    17
    Real Name
    John

    Genus variable ND filter.

    Wondering if anybody has had any experience with the Genus variable ND filter. It's less than half the price of the Singh Ray, but I would hate buyers remorse, and I know you get what you pay for. Basically I only want it for moving water photography. At least so far.
    Thanks in advance.

    John

  2. #2
    Photon Hacker's Avatar
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    Dec 2011
    Location
    Veracruz, México
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    126
    Real Name
    Mario

    Re: Genus variable ND filter.

    As far as I know commercial variable "natural density" filters are just two polarizing filters stacked together. I wouldn't call them "natural density", for their attenuation depends on polarization of light and hence will have attenuate differently different parts of the image (More noticeable on the sky, I guess). Be aware of that if you buy them.

  3. #3
    rpcrowe's Avatar
    Join Date
    Jul 2008
    Location
    Southern California, USA
    Posts
    13,017
    Real Name
    Richard

    Filter stacking

    Here is a link to a site which explains the principle of using a pair of polarizing filters as a home-made variable neutral density filter. Although I once picked up a cheap linear polarizing filter at a rummage sale for less than a U.S. Dollar, I have not tried the combination as of yet. I don't have a lot of hope for the quality it will produce. But, it is on my long-long list of experiments for the future and for only a dollar it was worth the chance if only for experimentation...

    http://www.digital-photography-schoo...density-filter

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