But is the filter graduated? What tells you if the written graduations are real?
The way I used mine (I've only used it once because I found it gave uneven graduation in the sky), was to use the camera meter to decide the settings I want. Usually, it's trial and error, specially for getting the desired result with waterfalls.
Pretty much. An app can tell you that if you want a certain shutter speed for a given ISO/aperture combo and you can't slow your shutter down enough, it'll return which single ND filter to use.
So why not just set your ISO & aperture, then turn the VND until the meter displays the shutter speed you desire?
But is the filter graduated? What tells you if the written graduations are real?
The way I used mine (I've only used it once because I found it gave uneven graduation in the sky), was to use the camera meter to decide the settings I want. Usually, it's trial and error, specially for getting the desired result with waterfalls.
The filter is graduated with marks (small single lines) on it.
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I know. What I meant is that there is no markings on the filter to let you know how much effective it is.We're discussing variable NDs, not graduated.