Dfx User Guide - Tiffen.com

ND-Grad
The ND or Neutral Density Grad darkens only a portion of the image using a
graduated transition between the darkened portion and the original image. It
selectively adjusts brightness without affecting color balance. The most likely
use for the ND-Grad would be to balance the difference between the sky and
the ground.
1 Apply ND-Grad from the HFX Grads/Tints category.
2 Try out some of the presets.
3 If the Parameters window is not showing, click the Parameters tab at the bottom
of the Presets window.
Filter Tutorials 125
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4 Adjust the Exposure slider to vary the amount of neutral density being applied
to the image.
5 Adjust the Grad > Direction, Corner Points and Size.
To adjust the Corner Points, just click and drag them to the desired location.
Go to the Grad section of Common Filter Controls on page 253 to see how the
Grad controls work.
6 If you are curious, you can see what the Grad looks like by changing your View
to Grad. Change your View to Output when done.
7 If you want less darkening of the image in the area of the Grad, adjust F-Stop >
Exposure.
8 Click the Done button to apply the filter to your image.
See the ND-Grad filter on page 381 for more information.
Dfx User Guide
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