I have a Linhof Technika 5x7 with an adapter for technika 4x5 boards. till now i use smaller lenses in technika 4x5 lensboards. so far so good.
Now i decided to convert my toyo metal field into a 5x7. the toyo uses graflex bords. Now, i would like to mount all my lenses into the graflex boards. as far as i know no adapter was made from linhof, so i have to make it myself...

i know that toyo made an adapter for the graflex board and i think that calumet did one too.
for an easy conversion it is best to have a flat adapter ( i just trim it to the right size and fix it with 4 bolts to a linhof 5x7 lens board ). as far as know the toyo isn't flat on the rear side, don't know about the calumet.

what i would like to know is: who made an adapter for the graflex 4x5 with a flat rear side.

thanks, boris