Hi!
Just "normal" turist visa, only "requirment" was that i needed to get an dokumet that insures that i visited places i told officials im gona visit!
there is 2 ways to do that, take in on local "hotel" or go to local hotel pay them for filling in an form for you! ( this case it was cheaper to stay overnight, and got an nice WARM shower!)
No "sponsor" needed! They are "loosing "up all that! Visa was quick business, send in form, pictures and back comes invoice, pay it an 2 days later you have visa in mailbox!
--Jan--