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Tutorial no. 6 of Prof's PSP 8 Intro Tutorials>
The Lens Distortion Effect
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The Lens Distortion Effect
Created by:Prof

In this tutorial we will briefly explore the new PSP 8 effect of Lens Distortion. This effect has some very interesting options for creating neat effects of images and photographs.



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The Photograph

The photograph I am using in this tutorial is from PSP 7 in its Images || Sample folder and is labeled "/tutorial/html/tut8eff/truck.jpg". If you do not have this photo, you may download the resized version with the download file on the left.

The original image is 1024x768 pixels and needs to be resized to 40%: Go to Image || Resize:
Dimensions = 40 Percent
Print Size = does not matter
Resample = checked: Smart Size
Lock aspect ratio = checked
Resize all layers = checked

Open Image





Exploring Effects: Lens Distortion


Open "/tutorial/html/tut8eff/truck.jpg" from your download and duplicate it with Shift+D or Window || Duplicate.


Let's begin first by exploring the new effect Lens Distortion. Go to Effects || Distortion Effects || Lens Distortion.


There are three general options:

Center offset: sets the horizontal and vertical outcome of the image.

Settings: sets one of four possible results (Barrel, Fish eye, Fish Eye (equi-scale), and Pincushion.

Edge Mode: Color, Repeat, or Wrap.

In order to see how the Setting options work, we will exaggerate the values in the Center Offset and Settings and then explore the Edge Modes.

Illustration #1

Center offset:
Horizontal = -250 (minus 250)
Vertical = -250 (minus 250)

Settings:
Type = Barrel
Strength = 100

Edge Mode = Color: black

Illustration #2

To see how the Barrel effect works without any offset, just change both offsets to zero (0).

The image's center is slightly 'punched' out while the rest of the image has a barrel or TV-like look.

Thus, the Center Offset will effect the image in a perspective-like fashion as seen in the illustration above.

Illustration #3

The Edge Mode options have interesting effects as well. In this illustration we will reset both Offset values to -250 (minus 250) and select "Repeat" for the Edge Mode.

Notice how Repeat causes a blue-like motion effect behind the truck image and extends the top part of the image.

Illustration #4

Center offset:
Horizontal and Vertical = 0

Edge Mode = Wrap

In this effect of the Wrap Edge Mode, the image has mirror-like effects surrounding the center image. With the current settings this image also has a bubble like effect of the main image.

Illustration #5

In the next set of illustrations, we will use the "Fisheye" setting. Notice how it has the appearance of a very rounded and center magnified look.

Center offsets:
Horizontal and Vertical = 0

Settings:
Type = Fisheye
Field of view = 150

Edge Mode = Color: black

Illustration #6

By applying the Fisheye effect a second time with no change in values we create a 'flashy marble' effect.

Illustration #7

The "Fisheye (equi-scale)" effect has a neat result as well.

Center offsets = both -500 (minus 500)

Settings:
Type = Fisheye (equi-scale)
Field of View = 179 (maximum)

Edge Mode = Color: black

Illustration #8

Center offsets = both 0

Settings:
Type = Fisheye
Field of View = 150

Edge Mode = Wrap

This effect produces a ring of color around the center image.

Final Comments

In this tutorial we have only explored a few of the Lens Distortion options and settings. There are many unique results that one can create by manipulating the values of the settings.

Also, the results of the image and its unique aspects is also dependent upon the image or photograph one uses. Experiment with different images as well as with different options.

Enjoy Prof