5.2. Apply Lens
| 5. Distort Filters |

### 5.2. Apply Lens

#### 5.2.1. Overview

Figure 17.54. The same image, before and after applying lens effect.

Original image

Filter “Apply lens” applied

After applying this filter, a part of the active layer is rendered as through a spherical lens.

#### 5.2.2. Activate the filter

You can find this filter in the image window menu through Filters → Distorts → Apply Lens…

#### 5.2.3. Options

Figure 17.55. “Apply Lens” filter options

Presets, “Input Type”, Clipping, Blending Options, Preview, Split view

  | Note
  These options are described in Section 2, “Common Features”.

Lens refraction index

  Lens will be more or less convergent (1-100).

Keep original surroundings

  The lens seems to be put on the active layer.

Background color

  The part of the active layer outside the lens will have the background color selected in the toolbox.

  You can select the color:

  - Click on the color button to open the color selector dialog.

  - Click on the eye-drop button on the right to pick color from the image.

5. Distort Filters |  | 5.3. Emboss

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