>>3608277>>3607985Or make a pinhole cap for the camera. That camera can have a 23mm focal length pinhole cap with a 0.2mm diameter pinhole It will project a 44.2mm image circle and just encompass the entire image sensor diagonally. Plus, 0.2mm diameter holes are easy to make since drill bits in that size are super cheap and needles are easy enough to come by.
Then you'll have that authentic pinhole setup on FF. Still life becomes pretty easy then.