This four-part video describes, in great detail, how to develop black-and-white 120 film. With photo labs becoming rarer by the day, knowing how to do this yourself will become increasing important if you want to continue to take and develop pictures with film. Developing 120 is a bit different than developing 35 millimeter, so if you can already do that still watching this video! Thankfully, the presenter demonstrates the process in full light. Bear in mind it will be very dark when you do this yourself!