Our 57 Desoto convertible had an under dash 16rpm record player in it. Records were the size of a 45 but with a small hole. They were played upside down with the tone arm coming up to the record.
Not that easy. To do it right.
First the focal length of this fresnel will be wrong. Then you don’t just cut it to size. Yo cut it so the center remains centered. Then it is too thin and easily scratched.
Not so. The parallelism of your camera is as important as everything else. If you can’t rely on it then you are wasting your time and money.
Granted your large format may be used with movements but then it is also important that your movements are accurate and dependable.