After shooting 8X10 for many years, I am looking forward to expanding my horizons in the field of ULF photography. I will however be keeping my 8X10" camera for those trips where I feel as though lugging a "large" camera will be too taxing...

As far as film is concerned, the availability of this format in boxes of 25 sheets from Webphota.de was one of the reasons I decided to buy this camera. Euro 78,00 for 25 sheets of 30X40 ASA 25/100 or 400. I'm sure I can get Ilford cut to size, or Efke, but not without having to buy large amounts myself. That was another consideration. I haven't heard of anybody using this format, so "co-opping" film will be highly unlikely.

Can anybody provide either info or possible links where I can further investigate this format?

Thanks!