Angle finder for Pentax 645N

Hello,

there are quite a few seagull angle finders with varying magnification available from several places. I would like one of them for my P645N. They come with a few adaptors but the descriptions I found so far left me unclear wether they fit my Pentax 645N. The compatibility list is obviously for newer cameras only.
The eypieces of the P645N are of the screw-in varitey. Does anyone know a current camera with matching thread that might be in the compatibility list?

Thanks,
Andreas

The pentax own brand can still be found out there. I got mine off ebay, but by just doing a search I found a couple here.

Dead Link Removed

I am not sure if they are still for sale. The price seems quite reasonable.

Stoo

Thanks, Stoo, but I'm after the magnification.

I have a Seagull angle finder that I occasionally use on my Pentax DSLR. It came with a set of adapters for various cameras; they all slide over the camera's eyepiece.