LensDistortion

This compact Resolve FX belongs to Warp and requires Studio. Use it for modest barrel correction, an artistic virtual lens, or controlled color fringes. Camera parameters, the 3DE model list and grid calibration belong to the separate LensDistort tool.

Distortion near zero keeps geometry close to the source. BMD describes negative movement as stronger fisheye and positive movement as inward bowing. For correction, judge the direction against several straight lines rather than the appearance of a face at the center.

The source Fusion capture controls channel linking with Split Channels. The manual describes the inverse Gang concept: linked Red/Green/Blue or independent values. These are not two extra operating modes, nor evidence of an independent Alpha distortion slider.

Fine Adjustment narrows the slider range. It provides finer control rather than better resampling quality or automatic lens correction. Recheck the actual image after switching it instead of comparing only the previous numeric value.

Position defines the center of radial distortion. A 0.5/0.5 start suits a symmetric image; adjust one axis at a time if the center is displaced. A large center shift is not a general solution for perspective or a tilted horizon.

Inspect Black first to expose missing coverage. Reflect mirrors the edge, Wrap-Around uses the opposite side, and Replicate extends nearby boundary pixels. All three can leave recognizable artifacts; none recovers scenery outside the recorded image.

If the result must be enlarged to remove blanking, place Transform after LensDistortion. Enlarging the source before the warp and enlarging the warped result produce different framing. For local styling, combine clean and processed branches in Merge and mask that composite.