diff --git a/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/04.stigmatism and conjugate-points/02.new-course-overview/ray-optics-spherical-refracting-surface-stigmatism-paraxial-gauss-approximation_serieC_L1200.gif b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/04.stigmatism and conjugate-points/02.new-course-overview/ray-optics-spherical-refracting-surface-stigmatism-paraxial-gauss-approximation_serieC_L1200.gif
new file mode 100644
index 000000000..a4b369993
Binary files /dev/null and b/01.curriculum/01.physics-chemistry-biology/03.Niv3/02.Geometrical-optics/04.stigmatism and conjugate-points/02.new-course-overview/ray-optics-spherical-refracting-surface-stigmatism-paraxial-gauss-approximation_serieC_L1200.gif differ