Jack, I don't have the *istD but I guess the DS is similar enough.
I'm preparing a page on the Peleng for my little site, it is not finished for the lack of some example pictures, but there's something on the mirror issue, as well as links to other sites with examples.
http://mac.tidings.nu/PinkyPentax/P8mmFE.shtml (please disregard the Pinky, they are just for company :).
I have placed a few examples in this directory: http://web.telia.com/ ~u40938461/PinkyPentax/
Turning the camera diagonally makes it possible to cover 180 degrees horisontally...
Regards, Bertil
