I hacked a 6x24 using a Calumet 115mm lens and 120 film
I have a few negs that I like and a bunch more that showed me that my brain couldn't get around the wide view- I ran out of "composition" at the ends of the frame. ( so who cares about fall-off)
So I re-hacked the body to use an old 135 Optar. My brain could do that somewhat better, and the Optar almost covered.
I've had a 210 lying on the shelf for a coupla years so I can make a new hack.
One of the events that started me down this road was a "waste" of most of a sheet of 8x10 exposed thru a 300mm Protar, plus the low spontaneity of a 2-D in the field