LIFT estimations for the dataset of PSFs with ramping defocus. Results were obtained for two on-sky targets (top and bottom rows). Estimations were done for three modes (a₁, a₂, a₃) (left column) and nine modes (a₁,...a₁₀) \ {a₅} (right column). For target #2, including modes beyond TTF allowed us to retrieve the defocus in an accurate way. Here, TT modes are estimated but not displayed. Lines represent median values, while error bars show 1σ confidence interval.