Zone System learning apparatus
thingiverse
I was watching the great course "Master MANUAL Metering for Film" by Nick Carver. I only have a minolta spot meter with EV-value metering so I had to make this. It requires some paint and glue after printing but will work without too. ***UPDATE*** Added a smaller version of it, only 38mm tall, but less detailed (small_) Comes with an ISO ring lock (M3 bolt) I recommend printing 0.1 layer height for better details. See the pictures for assembly. Glue the thinnest ring to the core centering the V and middle groove of the core. Place the EV-Aperture ring on top of that, then ISO-ring. Finally glue the top part to the core lining the slot and V-mark on the bottom ring. It should have some tolerance so that the rings can turn freely.
With this file you will be able to print Zone System learning apparatus with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Zone System learning apparatus.