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640 Transactions of S.M.P.E., Vol XI, No. 32, 1927
conditioning plants, and the film as it goes through the various processes takes the condition of the air in the plant. There is no special machine or cabinet required for conditioning, and as the film goes through for examination it is in proper condition. When it leaves the laboratory it goes to the exchange, and I don't believe there are any exchanges having proper conditions for storing film. This situation should be improved. Also, as Mr. Townsend explains, the shipping of the film should be in cases where it could be kept under the proper conditions of humidity. This is entirely possible, and if such care is taken, it will eliminate buckling.
Mr. Richardson: Then you believe that heat has little to do with buckling? Is it not a fact that the greater photographic densities causes more buckle? That is a recognized fact in projection.
Mr. R. C. Hubbard: I am speaking of the experience we have had with film returned to us.
President Cook : There is an opportunity for the Nomenclature Committee to distinguish between the different forms of malformation of the film-longitudinal, transverse, and window frame style.
Mr. Gray: In answering Mr. Hubbard, I should like to tell of an interesting case of buckled film which I recently observed. About a year ago we ran a print of a certain film which apparently had never been projected. On screening the film we found that out of three or four different reels much of it was badly buckled and caused a pronounced oscillating, in-and-out-of -focus effect on the screen. This was so bad that we could not use it, and we had to obtain another print.
Each Tuesday we have a Review Day, running films which we have shown before. Two weeks ago we again presented the same film subject to which I have just referred. When this was screened, I noticed it was buckling badly, and upon referring to the print number on our record, I found it to be the same print which had given us trouble a year ago. So far as I could judge by memory, there was as much buckling and no more, after a year of service, than when it was first used.
Mr. Hubbard: I certainly believe Mr. Gray's statement. That might be due to some effect in one roll of the film base itself, but the majority of the complaints we have from buckling will, of course, be more or less from throughout the reel. We can recondition that film within a short space of time by putting it in a properly conditioned room.