DxO ViewPoint 3 is the latest version of DxO's perspective and distortion correction program. It works as a standalone application, as a plug-in for Lightroom, Photoshop and Elements and as a fully-integrated panel within DxO Optics Pro, DxO's flagship optical correction and raw processing tool. DxO Optics Pro 11 review ViewPoint is designed to correct the converging … [Read more...] about DxO ViewPoint 3 review
Lens distortion and how to correct it
Many lenses produce 'barrel' or 'pincushion' distortion, and zoom lenses in particular. Wideangle zooms typically produce barrel distortion, where straight lines like horizons near the edges of the picture appear to bow outwards, while telephoto zooms often produce pincushion distortion, where the edges bow inwards.
Distortion can be fixed digitally. Some cameras offer in-camera distortion correction, but only when you shoot JPEGs and with that maker's own lenses. It's better to use software that comes with automatic lens correction profiles – and this is now becoming increasingly common. Lightroom, DxO PhotoLab and Capture One Pro all offer lens correction profiles, as do other programs like Alien Skin Exposure and ON1 Photo Raw.
Lens distortion is not the same as perspective distortion. That's an entirely separate phenomenon that you often address at the same time but has very different causes – and it's another topic entirely.
DxO Optics Pro is designed to correct a range common lens distortions automatically, including distortion, chromatic aberration, vignetting and edge softness. But the DxO Volume Anamorphosis option is less well known. It's not enabled in the default DxO corrections, but it can make a big difference to super-wideangle shots and shapes near the edges of the frame. • Note that … [Read more...] about When and why to use the DxO Volume Anamorphosis option