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Using a variable ND filter

Discussion in 'Pro/Adv Discussion' started by LeonThePeon, Jan 1, 2016.

  1. LeonThePeon

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    I picked up a kit that had a UV, a variable ND filter and a circular polarizer. I threw on the VND - and even after making adjustments - at just about all stops - the effect has, what looks like, an inverted bell curve. (Where the center is darker than the sides.

    Anybody else using a variable ND filter have this affect? Or did I pick up a bad brand? :( (Promaster Quad Filter Kit for Phantom 3)

    If there's another brand with a variable ND filter that does better - suggestions would be appreciated. Otherwise, I'll probably trade it back for a 8 ND.
     
  2. Noodle

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    I read someone using one of those 2-400 variable ND filter and it creates this vignette side-effect on their video.
    So yeah, should stick to fixed ND filters. Get at least ND8 and ND16, 8 for cloudy day and 16 for bright sunny day.
     
  3. JustinJ

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    ... As for brands,

    Polar pro & taco seem the most popular

    (I have taco multi coated - 4/8/16/32nd pack £50 or $75)
     
  4. Phantomfreak

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    I have the polar pro kit with the ND4, ND8, and the polarizer.. It works great, heres a few pics using the ND8 filter
     

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  5. apsphoto

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    variable ND filters are not good to use, they have all kinds of issues, best to use solid NDs.

    Alan
     
  6. LeonThePeon

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    Thanks everybody - I'll probably go swap it out for a fixed ND8 and ND16. Although the the Polar Pro 6 pack with ND and polarizer in one sounds interesting too - to get a little more contrast with the foreground.
     
  7. LeonThePeon

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    Nice pics! Is that your house?
     
  8. Phantomfreak

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    No, that would be nice if it was.. I live at the top of a canyon in the Hollywood Hills with many estates around the area like these in the photos, I fly around and take pics sometimes..
     
  9. LeonThePeon

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    Ah... paparazzo... Got it! :)
     
  10. LeonThePeon

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    Just a heads up - I decided to return the "Promaster Quad Filter Kit for Phantom 3" after I inquired Promaster about it. I sent a picture that showed the affect and asked what's up - The gist of their response was: "This is one of the down sides of having such a wide angle lens and using a variable ND filter."

    ... Shouldn't sell it as a "kit for Phantom 3" then... IMHO