A fine lens for Crop EOS camera.
At 8mm you get a very huge DOF.
Set at f5.6, the hyperfocal is at 60cm... This means that shouting at F5.6 with the distance set at 60cm you are sharp from 30cm until infinite...
The metering however must be set to "center weight" to ge it right in Av mode. In full metering mode, all pictures get over exposed.
On the samples below I updated the Exif with the missing info.
My distance was set to + -1m.
The resulting angle of view is 167° on my Canon 40D.
I can recommend this cheap lens for its performance and ease of use while it is fully manual.
on dpreview : http://www.dpreview.com/galleries/2067447241/albums