I'm looking for a convenient way to safely store or transport smaller lenses like Ai-s Nikkors (28,35, etc.).
I have on multiple occasions seen translucent plastic cases that have coarse threads and often come with some paddings. They are used to store optical lenses and seem to come in various diameters and lengths. I have one even for my glasses that is thin and long. For some reason I can't come up with the proper names to search for them online. Does anyone know what they are called and who sells them?