On flea market I found old Kodachrome 35mm film, so I paid 1 euro and got it just that it does not sit there in the dirt (maybe I will shoot it and develop in B&W). I opened and I see that film has longer leader, just to fit Barnack Leica. Is this made for that, or some other reason for this in kodachrome?
Interesting is also that film expired in 1977, and price was 15.90 DM (deutsche mark), developing included.
Many older Kodak films were cut with a "Leica" leader. In fact, I have seen newer films that had a template for the longer leader printed on the back of the instruction sheet.
until the 70s sometime ALL film was cut with a leica leader like that. They quit when they started selling all those point and shoot cameras with auto-load that didn't need a long leader and might not even work as well with one, since they usually needed both sides of the sprocket wheel engaged to drive the film properly.
By then LTM leicas were pretty scarce, relative to the zillions of other cameras out there, and weren't a factor in the eyes of film makers. The few still using them could fix the problem with a pair of scissors.
and they all sucked -- i have one now and when you try to use a penknife to make the cut you end up with a jagged edge after taking two minutes to get the film properly aligned in the jig.
I just use scissors to cut it -- precision does not matter, only an approximately correct length and the final curve to the edge being smooth. Takes 2 seconds.
The shorter leader tail probably made every roll an inch shorter -- more profit for Kodak. But I think it was also part of standardizing 35mm film for autoloading cameras.