The invention relates to a disposable flexible membrane (1) suitable for adhesion to an objective lens, especially an objective of a camera for laparoscopic operations, the membrane (1) being transparent and comprising two opposite faces, a first face (4) comprising a hydrophobic surface, and a second face (6) comprising a surface of reversible adhesiveness. The invention further relates to a method for temporarily protecting the objective lens of a camera comprising the step of manually positioning such a membrane onto said lens and further manually removing said membrane from said lens.
