Tips
How to Film Your Lifts for AI Form Analysis
June 20, 2026 · 4 min read
AI form analysis is only as good as the video you feed it. A few seconds of setup is the difference between a precise rep-by-rep breakdown and a shrug. Here's how to film a set the right way.
Pick the right angle
For squats, deadlifts and the bench press, film from the side (about 90° to your body) — that's what reveals depth, bar path and spine angle.
Film from the front when you want to catch left/right issues like knees caving in or an uneven press. When in doubt for a lower-body lift, side-on is the safest single angle.
Set the distance and framing
Place the phone 6–10 feet away so your whole body — head to feet — stays in frame for the entire set, including the very bottom of the rep.
Portrait orientation is fine; just don't crop your feet or the bar. If anything leaves the frame, the AI loses the joints it needs.
Get the lighting right
Keep the light in front of you, not behind. A bright window or rack light behind you turns you into a silhouette and the tracker loses your joints.
Even, front-on lighting and fitted clothing (so joints are visible) give the cleanest tracking.
Stabilize and keep it simple
Prop the phone on a bench, a plate, or a small tripod so it doesn't move mid-set.
One clean set per video beats a long, shaky clip — record, then move on.
Let FormLens do the rest
With good footage, FormLens tracks every joint, scores each rep, and flags depth and asymmetry automatically.
Good video in, precise coaching out — the setup pays for itself on the first set.
Check your own form
Film a set and FormLens scores your form, measures depth and asymmetry, and shows you exactly what to fix.