In this video I go over how I develop large format film using the BTZS tubes. I am using 4x5 Ilford Delta 100 and all Ilford chemistry: Ilfosol-3, Ilfostop, and Ilford Rapid Fixer. I go through each step from loading the film from the film holders to showing the scanned end result. The final image is from Ramsey Cascades in Great Smoky Mountains National Park. It was scanned using an Epson V700.
I ordered the BTZS tubes from Fred Newman at viewcamerastore.com I'm not affiliated with the store in any way, but Fred has always been super helpful through emails and his own YouTube videos. Give his store a glance if you need any large format gear. I think it's important to support these stores with the way the large format market is these days.