The international photographer (Jan-Dec 1935)

AiHjust, 1935 T h INTERNATIONAL PHOTOGRAPHER Thirty-one MINIATURE CAMERA PHOTOGRAPHY (Continued from Page 11) probably be used for a few more rolls of film before being discarded. Film Speeds. Some photographers may have a film speed table for some time, and when comparing it with a table of more recent issue find that in the latter panchromatic films are given a lower speed rating in artificial (Mazda) light than in daylight, whereas in the older table the listing is just the reverse — the pan film is given a higher speed rating in artificial (Mazda) light than in daylight. The older type of tables refer principally to visual exposure meters. Despite the fact that panchromatic films are sensitive to red, and Mazda light contains a comparatively large amount of this color, these films are still generally more sensitive to blue light. Daylight is rich in blue and low in red, therefore for equal light intensities panchromatic films are faster in daylight than in Mazda light. In general under Mazda light panchromatic films are rated 3 degree Scheiner less than under daylight ; orthochromatic films are rated 4 degree Scheiner less. WESTON ANNOUNCES NEW EXPOSURE METER OF HIGH LIGHT SENSITIVITY A new photo-electric exposure meter in which sensitivity to light has been increased more than three times over previous models has just been announced by the Western Electrical Instrument Corporation, Newark, N. J. It will be on the market within the next few weeks, according to present plans, and will be sold at a lower price. The new meter extends the determination of accurate exposure settings independent of eye-judgment to the lower brightness levels commonly encountered in photographing interiors, in home photography under artificial light, and in candid camera work. The widened scope of photographic possibilities resulting from the use of super-sensitive film and high-speed lenses, using such settings as F/2 and 1/10 second, is matched by the lightsensitivity of the new instrument. However, it is said to be more compact and more simple to operate than those previously available. A unique feature of the meter is the redesigned light-value indicator, which accommodates on a single scale a range of brightness values in which the maximum is 4000 times the minimum. This is accomplished without sacrifice of legibility by spacing out the divisions at the lower end of the scale where exposure determination is most critical. The movement of the needle over the scale is of sufficient magnitude so that it need not be held close to the eye. Universal application of the meter to all types of still and motion picture cameras is provided by means of an open-face reference dial including aperture settings from F/1.5 to F/32, shutter speeds from 1/1000 second to 100 seconds, and a range of film speeds from 1 to 64 (Weston rating). Simplified arrangement of the new dial gives a more rapid and convenient indication of "normal" exposure. However, a complete indication of the film-density range available for any particular photograph is also shown at a glance, so that the photographer who wishes to depart from "normal exposure" to meet exceptional light conditions or to distort tone values for artistic effect has all the information required. Light entering the meter is restricted to that within the usual lens angle by means of a new type of cell window of glass in the form of multiple lenses, a method which transmits a considerably greater proportion of the light than is possible with the A DAY AT HOME (Continued from Page 28 J could take my camera out quickly in order to make record photographs. Fortunately, there were no nightmares, because this day at home with my Leica had been truly enjoyable and proved to me that I should use my camera much more often for recording the everyday life of my family. There is a great deal of material at hand in the home itself for days and days of photography. Throughout the year and every year, we should get as many of those home pictures as possible, for besides the joy of photographing them, the pictures often have great interest as family records. With a miniature camera, we can afford to be generous in our records. On rainy days, in years to come, we shall be thankful that we took the time to photograph often our homes and our families and friends. baffles previously standard for this purpose. The photo-electric cell used in the new meter is of the same "dry plate" type first adapted to the photographic exposure problem by the Weston organization. The increased sensitivity of the instrument has been obtained without sacrifice of permanent electrical characteristics, according to the manufacturers, and the reaction of the cell to light of various wave lengths is such that exposure data for color photography is accurately indicated. The Motion Picture Relief Fund of Hollywood is one of the best administered organizations of its kind in America and the cameramen are glad to attest to this fact. The cinematoqraphei who requires a still camera for work on location nnd title backgrounds finds that Rolleiflex and Rolleicord Cameras perform another function as well. They will reflect with mirror-like fidelity the pictorial possibilities inherent in your subject or scene. . . . The separate focusing finder camera built into these instruments provides you with a sharp and graphic visualization of the ultimate picture which the precise and synchronized taking mechanism will convey to your film. Truly, Rolleiflex is the Camera that THINKS FOR YOU. Supplied also with cine film attachment. Literature on Request. FREE TRIAL GLADLY GRANTED Burleigh Brooks 127 West 42nd Street. New York Please mention The International Photographer when corresponding with advertisers.