Problem
A dynamic crop follows a presenter through a push-in camera move but introduces visible crop acceleration that looks like an artificial camera jerk.
Solution
Root Cause / Diagnostic:
Combining a physical camera push-in with automated digital crop tracking compounds scale and position vectors. When automated reframe tools insert linear tracking keyframes over footage that already possesses non-linear camera motion, the compounding velocity curves create unnatural spikes in optical acceleration. This kinematic mismatch results in noticeable camera jerking and viewer disorientation.
Actionable Step-by-Step Fix:
1. Convert Keyframe Interpolation to Bézier: Open the Effect Controls / Curve Editor and change all position and scale keyframe interpolation from Linear to Continuous Bézier / Smooth Ease.
2. Disable Tracking During Physical Push-Ins: Suppress digital reframe scale keyframes during camera zooms and let the physical camera push-in provide the forward visual energy.
3. Apply Motion Smoothing Filters: Set the Reframe Motion Preset to "Slow / Smooth" and adjust the tracking window dampening factor to a minimum value of 60.
Pro Creator Tip:
Never digitally scale footage that is already moving along the Z-axis; lock digital scale to 100% and use smooth Bézier keyframes exclusively on the horizontal X-axis to keep camera moves organic.
Combining a physical camera push-in with automated digital crop tracking compounds scale and position vectors. When automated reframe tools insert linear tracking keyframes over footage that already possesses non-linear camera motion, the compounding velocity curves create unnatural spikes in optical acceleration. This kinematic mismatch results in noticeable camera jerking and viewer disorientation.
Actionable Step-by-Step Fix:
1. Convert Keyframe Interpolation to Bézier: Open the Effect Controls / Curve Editor and change all position and scale keyframe interpolation from Linear to Continuous Bézier / Smooth Ease.
2. Disable Tracking During Physical Push-Ins: Suppress digital reframe scale keyframes during camera zooms and let the physical camera push-in provide the forward visual energy.
3. Apply Motion Smoothing Filters: Set the Reframe Motion Preset to "Slow / Smooth" and adjust the tracking window dampening factor to a minimum value of 60.
Pro Creator Tip:
Never digitally scale footage that is already moving along the Z-axis; lock digital scale to 100% and use smooth Bézier keyframes exclusively on the horizontal X-axis to keep camera moves organic.