Im looking at the Panasonic hdc sd600 and possibly the sd700
They both seem really good cameras. Has anyone had any experience with either of them? Are the 700 models much better than the 600? Apart from the manual focusing capabilities of the 700

Also, it says that they have 35mm wide-angle lenses. What is this?

The filter diameter is 46mm, can anyone recommend any good fisheyes to fit this diameter, with minimum/no step up rings?
I was looking at some opteka fisheyes but the biggest one i have seen is 43mm

Thanks a lot in advance

P.S im from the uk