To retain the editability of a lens, save the file first in CPT format, which will retain the layer structure. In this case, the lens effect will no longer be editable when the image is reopened. Note: When saving an image that has a lens effect applied to it, be aware that many file formats will merge any existing layers to a single layer. Since a lens sits above the background image on its own layer, you can easily remove an unwanted lens layer by clicking the Delete button in the bottom right-hand corner of the Object Manager docker. You can make adjustments to the lens at any time. Lenses also offer the advantage of being adjustable on the fly. When applying a lens to a masked area, you can use the Object Pick tool to reposition both the mask and the lens within the image. You can apply lenses to an entire image or to the editable area of a mask. Lenses, which are the equivalent of adjustment layers in Photoshop®, let you preview special effects and image adjustments without permanently altering the image pixels.

We'll also look at how to create special tonal effects. In this tutorial, we'll explore the many benefits of using lenses and masks to make image adjustments.

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