diff --git a/12.temporary_ins/65.geometrical-optics/50.simple-elements/30.thin-lens/20.overview/Const_lens_conv_point_AavantF.gif b/12.temporary_ins/65.geometrical-optics/50.simple-elements/30.thin-lens/20.overview/Const_lens_conv_point_AavantF.gif new file mode 100644 index 000000000..6a2b1d6ff Binary files /dev/null and b/12.temporary_ins/65.geometrical-optics/50.simple-elements/30.thin-lens/20.overview/Const_lens_conv_point_AavantF.gif differ