Quote Originally Posted by mfohl View Post
Just historical interest. It's sometimes interesting to see how things progressed to the way they are now.

And along those lines, here is another seemingly worthless historical issue. There was a raging debate about 25 years ago about Kodak's plastic 35mm film canisters: they were black. Lots of folks were lobbying for clear or at least translucent containers so folks could see with just a glance what kind of film was inside. Kodak's response was that if a roll of film became damaged to the extent that light could get to the film, putting the film in the black container )using a changing bag or something) could keep the film light tight until such time as the photographer could get the container to a darkroom. Apparently Kodak capitulated and started using the translucent containers. I still have some of the black containers, with film inside, in the fridge.

-- Mark
Besides protecting the film from dust and moisture, the plastic container should protect it from light as well. When the lead is entirely retracted inside the canister there is a higher probability that some light can leak inside the canister. My first photography book, which I bought in 1980, criticized the Japanese translucent plastic container as basically not very rational.

Besides, if you don't retract the leader inside the canister - as some do - the translucent canister is no help in understanding which film is used and which is not.