Nodes
Multi-Shot Lens
Solve one lens jointly across several shots.
When several shots came off the same physical lens, this pools them into one joint calibration rather than letting each shot guess separately.
Connect each shot's Auto Track to a numbered input and each comes back refined with
the shared lens on a matching numbered output. Up to three shots.
Why It Helps
Any single shot only sees part of what a lens does. A locked-off shot barely samples the frame, a tight shot never uses the corners where distortion lives. Solving several together means more views of the same optics, and a better-constrained answer than any one of them could give.
Settings
Lock Principal Point keeps the optical center fixed, and is recommended.
Robust Loss (px) is the outlier threshold, as elsewhere.
The node reports how many shots it used and the final error.
See Also
Advanced Tracking for the other lens calibration routes.