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FOCUS Newsletter - Summer 2007 - Edition 16  Page 2

USING UNSHARP MASK
Sharpening is the last step in editing your image. Once you have made all the necessary changes and adjusted the image to its final print or digital size, you can view it by clicking on the HAND TOOL>PRINT SIZE and then sharpen.

Screenshot 1

Create a duplicate layer, LAYER>DUPLICATE LAYER. Open Unsharp Mask FILTER>SHARPEN>
UNSHARP MASK. (The example above was created using Elements 5 - ENHANCE>UNSHARP MASK).

Screenshot 2

For general sharpening, select Amount 90%, Radius 1.0, Threshold 4 - experiment with these settings to find the best ones for your image.
The radius controls how many pixels from the edge that the amount of sharpening will affect.
The threshold determines how different from its neighbour each edge pixel should be. The lower the threshold value, the sharper the edge. A threshold of 4 is suitable for a softer image like these poppies but a threshold of 0

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may be preferable for buildings.
To check the effect of the sharpening, place the cursor over the preview pane (it becomes a hand) and left click. This will show the "before" image. (Not Elements 3).
Screenshot 3
In the Layers palette, click on the drop down arrow beside Normal and click on Darken. This will make the duplicate layer darker than the background layer and reduce the halo effect caused by sharpening.
Screenshot 4
Choose LAYER>FLATTEN IMAGE to merge the layers.
 

2007/08 Season
The next season starts on Wednesday 5th September 2007. Programme events include a talk from Natural World Photographic Society, evenings with our own Len Deeley and David Southern, Back to Basics and we are introducing digital competitions into the league.

Enjoy the summer and we'll see you then!

                                     Philippa Davies

FOCUS Newsletter - Summer 2007 - Edition 16  Page 2