We perform photometric measurements of exoplanet transits using the 80-cm telescope of the Antola Observatory. So far, we observed the transits of several planets, among others Wasp-58-b, Tres-3-b, Hat-p-3-b, Hat-p-12-b. In a few cases, the observation was performed simultaneously, or as a follow up in different time zones, by the Antola Observatory and by other telescopes. Preliminary results have been presented at the conference Chianti Topics International Focus Workshop in 2016 (Lorenzo Cabona) and reported in the master degree thesis of Lorenzo Cabona. The measurements on Tres-3-b, Hat-p-3-b have been published on Publications of the Astronomical Society of the Pacific, see here. As an example, we show the preliminary light curve of Wasp-58 showing a drop when the planet transits in front of the host star: the two curves represent data taken during two different nights. The y axis represents the differential magnitude with respect to a reference star, while the x axis is the time.