Applebys Cafe Wide Angle

Applebys Cafe Wide Angle, originally uploaded by ....Tim.

I got a new toy today - a Super Wide Angle (Fish-eye) lens from Opteka.

I attaches to my normal lenses coverting the focal length to something wider. Not being an expert in such things I can't guarantee what i am about to state is accurate but....

The lens is listed as a .35; I imagine this to be a multiplying factor of some sort which makes this 18mm shot 6.3mm..

Someone correct me if I am wrong...