  Surface tension profiles in vertical soap films are experimentally
investigated. Measurements are performed introducing deformable elastic objets
in the films. The shape adopted by those objects set in the film can be related
to the surface tension value at a given vertical position by numerical solving
of adapted elasticity equations. We show that the observed dependency of the
surface tension versus the vertical position in the soap film can be reproduced
by simple modeling taking into account film thickness measurements.
