Compensator design for improved counterbalancing in high speed atomic force microscopy Rev. Sci. Instrum. 82, 113712 (2011) Rotational positioning system adapted to atomic force microscope for measuring anisotropic surface properties Rev. Sci. Instrum. 82, 113710 (2011) Note: Curve fit models for atomic force microscopy cantilever calibration in water Rev. Sci. Instrum. 82, 116107 (2011) Electroplated CoPt magnets for actuation of stiff cantilevers Rev. Sci. Instrum. 82, 115002 (2011) Additional information on Rev. Sci. Instrum. Light coupled from the opposite side of the fiber allows detection of cantilever deflections. In this paper, we demonstrate that ferrule-top cantilevers can be used to develop ultra compact AFMs for contact mode imaging in air and in liquids with sensitivity comparable to that of commercial AFMs. The probes do not require any alignment procedure and are easy to handle, favoring applications also outside research laboratories.