Tuesday, July 1, 2008
Interpretation And Refinement
Pressing the shutter button is only the very beginning
Labels: On Landscape
In these days of digital capture, postprocessing your images after the exposure is made is an integral part of making good images. In the old days of slide film, recording enough detail in highlights and shadows was a challenge. D-SLR cameras generally create images that hold a great deal more information in the high and low tones, but often appear too flat. Whether using film or digital, the untouched results aren’t “reality,” or what the eye sees. In addition, the unadjusted capture probably has little emotional connection to, as Ansel put it, what the photographer saw and felt about the scene.
First, it’s important to use software that’s sufficient to give you control over your images. Apple’s Aperture and Adobe’s Lightroom are excellent management tools, but they’re also full of powerful and easy features for processing your images. For many photographers, these two programs are sufficient for all their needs.
Recently, I’ve been using Lightroom to make my edits and initial adjustments before polishing up the file in Photoshop. Photoshop remains the ultimate tool for digital photographers, and the “lite” version, Photoshop Elements, is an effective and simple program for getting started with the digital darkroom.
One key aspect of maximizing your images is creating a master file for each digital file. This applies to both scanned film and digital captures. I started using master files when first scanning my 4x5 film for digital printing in the early 1990s. When using Photoshop, it’s important to use adjustment layers while using its tools. Each adjustment you make using tools such as Curves, Levels or Color Saturation is made on a separate layer.
Once you’re pleased with the results, you then can save the file using a naming convention such as Title-master.psd without flattening the layers. The master file becomes your archive for the full-resolution image, plus the adjustment layers you’ve created. You always can revert back to the originally captured (preferably in RAW) or scanned file and reprocess the image should the master file become damaged beyond repair. As I’ve improved my skills or discovered new tools for processing a file, I often start over to create a new file to improve upon the existing master file.
With a layered master file, refinements can be made easily at a later date by adding new layers or tweaking existing layers to further perfection. Tastes and preferences change over time. This ability in digital processing to both save one’s efforts for repeatable reproduction and allow for creative growth in interpreting an image in an efficient and convenient manner is simply revolutionary.
In terms of refining past adjustments, Aperture and Lightroom track your processing history and allow you to go back to adjust or reverse or eliminate past adjustments. Although not as powerful as Photoshop adjustment layers, you still have ability to refine or reverse your efforts.
Your full-resolution master file is the primary foundation for preparing images for any use you might have—fine-art prints, JPEGs for the web, files prepared for publishers, etc. You simply flatten the layers, set the image size and resolution, sharpen for output and Save As the new file with a name related to its use. When I make my fine-art prints, I save the file named to that size, so I don’t have to open and prep the master file when I next need to make that print.
The key effects of the layers used on this image are the separation of tones, especially in the shadows. The blacks were too light in the RAW file, so they were darkened while maintaining clear separation of the shadow values. The feeling of light in this scene was that of glistening highlights off the flowers and grasses. To maintain that effect, the highlight curves was pushed so that the whites were as bright as possible without losing separation of detail within the lightest tones.
With all of the tools available today for postprocessing your images, there’s little excuse not to dive into the digital darkroom. If you’re not currently making master files of your favorite images, complete with individual layers containing each adjustment you make, then you’re missing one of the greatest benefits of digital photography. Ansel often referred to his negatives as his musical score, and his print, the performance. Your digital capture has all the notes for your image, and your digital darkroom is how you make those notes sing for a grand performance!
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