Taking photos of volcanic activity is one of his specialties. He used an STX 30-70x85 spotting scope with a TLS APO adapter from SWAROVSKI OPTIK for his feature.Mount Etna has been showing a noticeable increase in volcanic activity for some time, in the form of Strombolian eruptions, which are a sequence of several minor explosions that very often result in convulsions, which are a series of slowly increasing volcanic eruptions. Both phenomena occur in the upper region of Etna, at a height of more than 10 000 ft / 3000 m.