finally, after 3 months, i have mated a 7x11 back to my existing 11x14 camera but i have run into problems and was wondering if someone could help me... first of all, i have a century 8A camera and i am using the reducing back ( sans 8x10 back+glass ) as my base for the 7x11 back i have. it didn't really fit right, because the protruding light baffle ( bit of wood that extends and makes a good seal ) is not the same size, it is a little bigger than the 8x10, and the clip/hardware isn't lined up right either so i figured i needed to do something drastic. i grabbed the black acid free masking tape , removed the clip/eyelet hardware and ran the tape around the back and the reducing back. i fit it on the camera and it seems solid. i then took it off again ( from the camera, not the reducer ) and removed the ground glass. it had about 50-100 years of grime on it. i used a soft paper towel and warm water and cleaned it and ... big difference. i tried to make notice how it fit into the back, shiny side towards me, ground part to the lens like usual. i put the glass back in, and mounted it on the camera, and it seemed OK until i pointed it out the window to see how bright it was. it took a while to get used to glass ( i have been using waxed paper for about a year and 1/2 ) .. and i know what was giving me trouble. the glass must be put in backwards or upside down, the image on it isn't right. its not dim, but bright, and it isn't upside down and backwards. if i had known that if i put groundglass in backwards it would be like a slr i would have done it a long time ago. maybe it is the aspect ratio ... 7x11 is supposed to be close to the golden mean ... is this what they mean ? when i make my prints will they be upside down and backwards too ? has anyone else had this "trouble" ? thanks in advance for help!