I got my Rainox this afternoon ! So I have not been able yet to test the lens in daylight, but my first impression is very satisfying:

1. The lens fits well in the wideanglehood from the PDx10.
2. The picture is sharp and full zoom thru.
3. Sharpening works as usual, automatic and manually!
4. In widescreen 16x9 there is practically no vignetting. I saw a very little darker border in one of the corners, but so small that it is very much out of the safe zone. It can not be seen on the LCD screen or in the viewfinder or on television.
5. In picturemode the vignetting is more visable in the corner.
The lens is delivered with a 37 to 37 (distance-)adapterring, but can be mounted on the PDX10 without it if no (UV-) filter is attached. I will try that tomorrow. I think that will help.

Overall the picture is very clear and very satisfying. I will test it tomorrow in daylight. The big advantage of the wideangle is also that it smoothes any unwanted movement of the cam, which occurs when no tripod is used. I could walk slowly with good results.

ps Accidently I started a new thread. So see also:
http://www.dvinfo.net/conf/showthread.php?s=&threadid=17282