Peleng 8mm f/3.5 Fisheye
Facts
a classic manual fisheye lens dating back to the good old days
estimated retail price 350 USD
in my use from 6/2005 to 10/2008
was my first fisheye lens ever and filled that need well
Pros
like any fisheye lens this lens can offer lots of fun
a real classic
resonable sharp when stopped down to f/8 or f/11
easy to focus manually due to huge depth-of-field
M42 mount version can be mounted to different camera systems via adapters
Cons