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Twenty
AMERICAN CINBM ATOGRAPHER
February, 1926
Harry D. Brown Introduces
New Iris for Cinema Work
By special arrangement with C. S. Worth, Harry D. Brown has become sole distributor of a new iris device for motion picture cameras. This invention is principally a shading and matting device and is announced to be quite an improvement over the original iris.
It is already in use and it is claimed that it gives a picture greater volume and depth. It can be attached to any type camera and contains a matting device in the form of slides which come in gauze and solids, which are already within the attachment, leaving no separate pieces to be carried.
To facilitate rapid handling of double exposures the whole device is built to move universally and can be used for any lens from 26 millimeters to 6 inches. It has a bellows extension, filter holders, sky filter, gauze matbox, four-way sliding gauzes and four-way solid matting plates. The iris is 4j/> inches in diameter and clears perfectly on 28 millimeter lens, closing out entirely.
The theory of the new iris is that light rays do not travel in a straight line, but have a rolling motion from sides and bottom, therefore making necessary a shading device that would reach a greater depth of picture and so concentrate the light rays. This is accomplished with a specially constructed hood with numerous light traps and which is removable from the instrument.
F 2. and F 2.5
Taylor-Hobson Cooke
Kinic Lenses
Focus F 2
1% in .$ 79.50
47 mm.
2 in 101.00
3 in 122.50
4J4 in 180.00
5J4 in
1'rices do not include mounting in Standard Micrometer mounts.
Also the famnnn lone focus Taylor-Hobson Cooke Telekinics are now available for cinematograph work in sizes from SM: to UO inches. For all around long focus work the <»% inch at $912.00 (not including mount) offers the speediest aperture of F 3.5 — combines flatness of Held with perfect color correction.
Now available for Immediate Delivery.
F2.5
% 44.00
48.00
50.00
61.00
91.00
135.00
regular B.
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United States Distributors
Manufacturers of !)5% of Professional Cameras
and Equipment
GRAF
VARIABLE F.3 LENSES
For the Essentially Correct
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50 M. M . .$ 75.00
75 M. M 75.00
100 M. M 100.00
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~ewYO»"'"5o"Ywooo CHICAGO.
United States Distributors
Roy Davidge Film Laboratories
The Little Laboratory with the Big Reputation
6701 SANTA MONICA BLVD. HOLLYWOOD 1944
SCHEIBE'S PHOTO-FILTER SPECIALTIES
Are now popular from coast to coast, and in some foreign countries.
If my many varieties do not always fill the bill, tell me your wants and I will make them on special order.
Always at your service.
GEO. H. SCHEIBE
1636 Lemoyne St. DUnkirk 4975 Los Angeles, Cal.