I'm still relatively brand new to all things LF, and really want to try out tintype photography with my Orbit 4x5. I have no idea about what kind of film holders I need to get or if I have to start rigging my own. I have two sheet film holders but they seem so thin I don't imagine I can put metal or glass into them. So does anyone have any resources on where to get holders or some good DIY tricks on making some?