Indeed this is done by both Adobe's new Lens Correction filter and PTLens. We really need two sliders: one near the center to correct barrel distortion and one near the corners to correct pincushion distortion. This resulted in excessive pincushion distortion near the corners. In our first attempt to fix distortion we adjusted the single slider in the Adobe's old Lens Correction filter to correct barrel distortion. This type of complex distortion is often called moustache distortion as it resembles a handlebar moustache such as the one found on Sir ArthurĢ4mm: Adobe's old single slider Lens Correction
#PTLENS PROFILE FULL#
The distortion at full wide angle, or 24mm, consists of barrel distortion near the center and pincushion distortion at the corners.
This is one of Canon's L-Series lenses designed to meet professional requirements and retails for approximately $1000 US. We'll examine the distortion in Canon's 24–105mm f/4L lens mounted on a Canon 5D full frame camera. Complex DistortionĬomplex distortion can be a challenge to correct. This document compares the Adobe's old single-slider Lens Correction filter, the new automated Lens Correction filter, and PTLens. Starting with CS5 the Lens Correction filter can automatically correct distortion based on several pre-calibrated parameters. Lenses typically require more than one parameter for accurate correction. One parameter often does a fine job on standard and telephoto lenses. Prior to CS5 the Lens Correction Filter used one parameter (a single slider) to correct distortion while PTLens can utilize up toģ parameters.