A 36-year-old Janesville man is headed to federal prison for 16-years on charges of producing child pornography.  Noah Eisele was sentenced Wednesday in federal court.  A U.S. Attorney’s Office Western Wisconsin District news release indicates Eisele solicited sexually explicit photos and videos from young girls on Facebook.  The Rock County Sheriff’s Office learned of the activity when Facebook flagged an account.  The FBI confirms the victims ranged in age from 11 to 17.  Eisele was also ordered to serve 15-years of supervised release.