Friends, I got an E-Mail answer from Filmotec, Germany, to my enquiry about the effective length of their portions. They state that no additional footage is given.
Now, did anyone measure an Orwo film load lately? I can hardly believe they sell 400 feet plus zero since a customer has right to the nominal footage, so a means must be there to thread up in the camera. In the beginning of the 16-mm. initiative black paper leader was glued to the stock but it was soon realized that the associated labour could be cut off by simply spooling on a few additional feet of film.
I have the booklet Eastman Motion Picture Films for Professional Use with supplement from 1942 but nothing is stated as to overlengths. Also no information can be found on today’s Eastman-Kodak website, nowhere.
The Carlsons* published detailed information on additional footage about Agfa-Gevaert, Eastman-Kodak, Fuji, and Ilford daylight and darkroom loads. Should we have reached the state that film manufacturers don’t know anymore how film works?
*Verne and Sylvia Carlson: Professional Cameraman’s Handbook, 1970 et seq.