Fisheye adaptor

[vRSG60]

Fisheye adaptors for D90, any recommendations that are cheap enough for occasional use.
I've seen these on Amazon.

http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=430153987&pf_rd_i=468294

 

[dizidav]

I have the Kenco 0.5 one, OK for fun pics, quite soft at the edges, cheap enough to have a play with.