I seriously doubt Pentax was the "inventor" of 6x7. I have a 6x7 (2 1/4 x 2 3/4?) roll film back for my Speed Graphic that's way older than any Pentax 6x7....
Regards, Chris L. - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .