Almost forgot just how much fun this thing is to use. I had it on the slowest shutter speed (1/25s), where unfortunately the shutter stays open sometimes. So I only have 2 pictures out of 8, but these turned out pretty fine for what it is (all with the widest aperture, too, f5.6):
On Adox HR-50 that I sliced to 17.5mm, and added paper-backing to. The spools are 3D-printed.