fish eye effect

a fiew days ago i make a transaction with my friends . haha dont have a negative think about "transaction". it  just about goods . goods ? what goods what you mean ?
haha okay okay i strted to tell it . i buy a fish eye effect and i buy it from my friend which in the same faculty with me . the price is medium . it takes 35k
but how to use it i think little dificult . we hold it in manually system but yaa the result not too bad :)
check this out

so with it i  take some picture

this is the picture i've been taken