Measurement lab
Put the calipers on the real film.
Click the landmarks in order. The lab computes your VHS or Norberg angle from your points, then shows the reference placement so you can see exactly where you drifted. Drag a point to adjust.
The drill pulls from the atlas, weights the modalities you miss, and repeats a case sooner the more often you get it wrong. Read the image, commit to a diagnosis, learn from the explanation.
Click the landmarks in order. The lab computes your VHS or Norberg angle from your points, then shows the reference placement so you can see exactly where you drifted. Drag a point to adjust.