messages: "Hence, the positions and characteristics of lenses L1, L2 and L3 should be calculated after the maximum angular positioning error has been evaluated." Please weave this story into French
messages: user
messages: "Les positions et le choix des lentilles L₁ L₂ L₃ doivent donc être calculés après évaluation de l'erreur angulaire maximum de positionnement."
messages: assistant