Update: here is a review of this lens.
Samyang 8 mm f/3.5 Aspherical IF MC Fish-eye lens is designed for APS-C image sensor. It creates images with an expanded perpective, including images with a creatively deformed outlook and a sharp pan focus that extends throughout the entire frame. By offering 180 degree angle of view, this fisheye lens ca be used to create amazing image expressions that cannot be seen with the human eye, such as exaggerated perpective and disortion. The minimum shooting distance and large depth of field gives new meaning to close-up shots.
Model: 8 mm f/3.5 Aspherical IF MC
Lens type: Fish-eye
Focal lenght: 8 mm
Angle of View: 180 degrees
Minimum Focusing Distance: 0,3 m
Number of diaphragm blades: 6
Optical Construction: 10 Elements in 7 Groups
Fitler thread: none
Available mounting: Canon, Nikon, KM/Sony, Pentax/Samsung
Dimensions: 75 x 74,8 mm
Extra feature: 1 aspherical lens, build-in lens hood
This lens will be available in may 2009.
Price: EUR 256.22 (around US$ 338)