#RAWTHERAPEE LENS CORRECTION HOW TO#
Join pro shooter, Ian Plant, at his computer for techniques and examples that show you how to use lens distortion correction in Lightroom. To shrink or expand the image, he also shows you how to use the Scale tool. With the Y Offset and X Offset tools, he adjusts for parts of the image that were lost. Then, he uses the Transform tool and makes adjustments with the Vertical tool, which corrects the distortion in the trees but reduces the resolution. RawTherapee My Rec ommendation for RawTherapee My Recommendation for RawTherapee Add Video or Image All 5 Pros 3 Cons 1 Specs Top Pro Great for the technically inclined If technically inclined, this RAW editing application provides fine-grained control over every aspect of the RAW conversion. In Lightroom, he brings up the Enable Profile Corrections module and corrects for edge distortions.
However, the trees are leaning out, causing distortion. He shows you his ultra wide-angle image of a white capped mountain, pine trees in the foreground. But Ian reminds you that these types of lens distortion correction are subjective based on the artistic vision of your own image. In the Constrain Crop section, he demonstrates that you can make corrections by employing the various sliders including vertical, horizontal, rotate, aspect, and scale. For each lens and each aperture, I take a white picture by photographing against the sky with a white tissue or white balance filter and overexposing 2 stops. Lightroom’s Lens Correction module picks the make and model of his camera and lens, and automatically straightens the curve of the trees and also corrects for vignetting.įor his next step, he goes to the Transform module to correct for perspective distortion. To correct vignetting and color cast, I use RawTherapee with flat-field correction. As an example of lens distortion correction, he imports a photograph of tall trees taken from low level, the trunks curved from distortion.
He explains that this editing program gives you several tools to correct for the inevitable barrel distortion you get in images captured with an ultra wide-angle lens. Ian prefers Adobe Lightroom as his photo processor and image organizer.
#RAWTHERAPEE LENS CORRECTION PROFESSIONAL#
In this video, professional outdoor photographer, Ian Plant, guides your through his own post production process for tips on lens distortion correction. It’s important to have a post production program that fixes the problem.
Ultra wide-angle lenses often cause lens distortion.
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