If you're new to Photoshop, you may have heard of these mythical things called "Smart Objects." This helpful tutorial walks you through a very practical application of them to help you understand their role in image editing.
Coming to you from Anthony Morganti, this video follows him as he composites some birds into an existing image and uses smart objects to help match them to the new background. Smart Objects are useful because they retain the image's original content, which enables nondestructive editing to be done on the object. For example, notice how he needs to blur the birds a bit to make them match the way the lighthouse image was focused. Making the inserted birds a Smart Object allows him to readjust the blur later on. This is particularly helpful if you're making numerous adjustments that may affect each other and you need to return to an earlier one in the context of a latter change.
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