Create a one-click polariser effect in Apple Aperture: steps 5-8
05 Increase the Saturation
Dragging the Saturation slider to the right restores the vividness of the blue sky – but be careful not to take it so far that it starts to look unrealistic.
06 Save the effect
And that’s all there is to it! There is a limit to how much this technique can darken a blue sky, but the same applies to real-life polarising filters. In both cases, the darker the sky is to start with, the stronger the polarising effect will be. So let’s save this effect so that we can use it again. To do this, click the Effects button and choose ‘Save as Effect’ from the drop-down menu.
07 Give it a name
This opens the Effect Presets panel, where you can type in a name for your new effect. You can also use this panel to organise your existing effects, including those which come with Aperture by default.
08 Applying the effect
Now try it out on another image. Just open the image, select the Adjustment panel, click the Effect button and select your new effect from the list. You don’t even have to click the effect to apply it, though – Aperture will display a preview when you roll the mouse over any of the options in the list.
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