Quote Originally Posted by cdholden View Post
Am I reading you correctly in that I could use a 4x5 holder on a 9x12cm camera? If so, where do I sign up for less weight in backpack? My Gowland 4x5 monorail is about 2.1 pounds (just shy of a kilogram).
Sorry, but this won't work on these old plate cameras.

BTW: Most of them only had front rise and shift but no other movements. If you are happy with that, you can still buy a 9x12 for a reasonable amount. Just make sure you buy one with filmholders. There were few standards back then and many were different. They really are small compared to even a Gowland or a Speed Graphic.