I'm an exchange student from Russia, and I have the national visa D type. But it's written there "valid for Italia". Can I go to other Schengen countries with this kind of visa? Because I want to visit France but I don't know if I can. Now I'm in Italy.
According the Italian Ministry of Foreign affairs you can visit other countries in Schengen area as long as it no more then 90 days in a 6 months period :
Long sojourn or "national" Visas (NV), which are only valid for visits that are longer than 90 days (type D), with one or more entries, in the territory of the Schengen State whose diplomatic mission issued the visa. Holders of type D visas are permitted to circulate freely in Schengen countries other than the issuing one for a period of not more than 90 days per half-year and only if the visa is valid.