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I’ll now go over the features where I think Photo Ninja excels. The alignment tool allows you to place several points along an edge that is supposed to be straight, and Photo Ninja automatically calculates the optimal correction settings. The current correction model is mathematically derived from optics theory, and it is powerful enough to correct combined fisheye, pincushion/barrel, and “mustache” distortion. Currently, it does not support auto corrections embedded in RAW data, which is disappointing. Distortion correction: For architecture or landscapes where lines need to be straight, this RAW converter offers lens correction filter that can repair the complex distortion typical of modern zoom and wide-angle lenses.I hear there is a new version in the pipeline and hope this will be improved. I’m mainly processing mirror-less sensors and was somewhat disappointed with these auto corrections. This app also includes a general-purpose “Defringe” tool in the noise reduction filter that can help with these types of fringing. Longitudinal CA and so-called “purple-fringing“ have different causes. Note that LCA is only one cause of color fringing in digital images.
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The technology is powerful enough to remove complex, nonlinear LCA that is exhibited by some modern lenses. The resulting improvement is striking compared to post-demosaicing correction. Significantly, for RAW images, Photo Ninja fixes LCA prior to demosaicing before the aberration is smeared across channels by demosaicing, color correction and other processing. In most cases, Photo Ninja can accurately measure and correct LCA without user intervention and with excellent results.
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This without flattening detail or halo artifacts. Photo Ninja includes an efficient adaptive lighting engine that can pull detail from shadows, overcome backlighting, tame aggressive highlights, and compress excessive contrast. You can brighten shadows, turn down highlights, and change contrast. Adaptive lighting: A feature set you’ll find in all RAW developers.Automatic overexposure compensation: reconstruction of missing data in overexposed areas.There are some things that Photo Ninja is good at, and others where I’d say it’s as good as any other RAW developer.