Changing Focus and Luminescence Post-Capture

By Paul Schranz Back to

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I just took my first trip to Point Lobos on California’s west coast since I transitioned to digital several years ago. Before that I had always shot with a medium- or large-format camera. With digital tools at my disposal, I decided to produce a photograph using the extended depth-of-field capability of Photoshop CS4.

I selected a relatively small image, with sufficient distance between the rocks in the foreground and the wet glossy plateau on the rock at the back of the image. I made three exposures, each focused differently, and imported the resulting images into Lightroom, which I use as my initial software for all non-montage work (Figure 1).

In Lightroom, I selected the three images, did global corrections on the first one, then synched it with the other two. From Lightroom I went to Edit > Open as Layers in Photoshop. Selecting all three layers, I ran Auto Align then Auto Blend on the three focus layers (Figure 2). I then flattened the layers and saved the file; it was automatically moved into Lightroom. I now had my base image with extended depth of field.

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About the Author

Paul Schranz
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Paul Schranz is a photographer and a photographic educator. He holds a BFA in photography from Ohio University, Athens, OH and an MFA in photography from Northern Illinois University, DeKalb, IL. He is Professor of Art Emeritus, Governors State University, University Park, IL, where he taught photography and digital imaging. He exhibits nationally and has received grants for documentary projects from the Illinois Arts Council. He is the former Editor of photo technique and Director of Mesilla Digital Imaging Workshops. Schranz is currently a faculty member at Dona Ana Community College, Las Cruces, NM, where he teaches advanced digital imaging, photographic composition, digital printing, image enhancement and manipulation.