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250
The Kinematograph Year Book.
FILM STOCK.
There has been little further development during the year in lespect of new films and emulsions either for photographic or sound-recording purposes. Studios in this country as well as in the States have made extensive use of the fast panchromatic stocks. Just over twelve months ago there was a change in sound-film perforation. Sound film for the past year has had the standard perforation for positive film. Apart from this development in Kodak stock has been mainly on the lines of increased output. Over a thousand miles of film is coated at Harrow every week, and the large battery of perforating machines runs continuously 24 hours a day employing three shifts of workers. Eastman super-sensitive panchromatic negative is in wide use. In addition to the last-mentioned film (with grey back and clear base) Eastman products include positive film, background film, soundrecording film, duplicating film, both positive and negative, and the sonochrome positive (tinted) films and the sound film patches so that Kodaks may fairly be said to cover the film stock required for any and every type of motion picture work.
The range of Selo stock with its high speed and non-halation qualities and colour sensitiveness has attracted the attention of studio workers. Uniformity, particularly the Selo hypersensitive panchromatic negative stock, is an outstanding feature of this stock.
Another negative material which enjoys a steadily increasing demand is the Agfa Pankine, Type G, which is extremely fast and has a very fine grain and the Agfa Bipack Stock for use in the subtraccive two-colour process.
As from March 12, the imports of sound-track negatives complementary to negative kinematograph films taken abroad by British enterprise are to be treated as blank film and admitted free of duty.
PRINT QUALITY.
From time to time at various branch meetings complaints have been made concerning the poor quality of release prints, particularly of American subjects. Exhibitors declared that in certain cases light was bad and there were dents and ground noises, and attributed to duping and to the effect of the cut prices of film printers. The London and H.C. branch, for instance, urged that the renters should print from the original negative or at least from an early copy. On the other hand, the renters' case is that prints which in density and photographic quality are perfectly acceptable to the pre-release house are not acceptable to the smaller shows largely owing to the poorer quality of screen illumination.
PROCESSING.
The permanent preservation of films was considered by a committee of the British Kinematograph Society at the request of the British Film Institute.
A new process of film preservation is being handled by the British Industrial Laboratories, Ltd. It consists of placing reels of film exactly as received in a vacuum chamber. Two containers filled with certain chemicals are then put in communication with the vacuum, and the vapours
PEERLESS PROCESSING
E Preserves the Film, Protects the Sound Track, Reduces Scratching, ;
; Impervious to oil and water. Toughens Emulsion. Invisibly Lubricates, etc. :
REELS NEITHER UNWOUND NOR HANDLED.
! BRITISH INDUSTRIAL LABORATORIES LTD, j
8/9, LONG ACRE, LONDON, W.C.2.
! , , , 'Phone: TEMple Bar 3221. .„„„„,..„, , .i