Richardson's handbook of projection (1930)

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MANAGERS AND PROJECTIONISTS 1269 In Fig. 452 we have an assembly drawing of the Super Simplex lens mount and lens shifting device, whereas Figs. 453 to 466 show lenses of different designs, with the necessary adapters assembled in proper position thereon for use in the Super Simplex lens mount. Examining Fig. 452 we find that detailed information is supplied covering drawing No. 451 and drawings Nos. 453 to 466. For example, let us assume that we have a 4-inch E. F. B. & L. Cinephor lens, Series No. 1. Referring to Fig. No. 451 and to the column headed " Assembly Drawing Number/' we find that assembly drawing No. 4 (Fig. 454) shows the parts necessary for use with this particular lens. In column No. 5, Fig. 451, headed "Assemblies" we find that assembly R-32 is required. Turning to drawing No. 4 (Fig. 454) we see what R-32 stands for. We find that R-32 for Cinephor requires E-114-R, which is the tube having the external dimensions of a standard Series 2, or "half size" lens, threaded upon one end. R-32 also includes two S-984-R, which are the clamp screws for B-321-R. B-321-R, the adapter for Series 1 Cinephor lens, all focal lengths, also is necessary, as is S-983-R, which is the clamp screw for R-258-R. In addition to these there is R-258-R, which is the fixed focus clamp L, Fig. 448. NOTE. — R-258-R is required only in cases where a quick lens change is required. You will note that the parts above named, taken as a whole, constitute assembly R-32. Hence if R-32 is ordered for a 4-inch E. F. Series 1 Cinephor lens — the one used in the example we have just considered — and the parts be assembled as shown in drawing No. 4 (Fig. 454), the lens will fit into the mount perfectly.