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HOME MOVIES FOR JANUARY
PAGE 29
TITLE trouble*
■ y CIORCE W. CUSHMAN
If you have any questions pertaining to titles or title-making, Mr. Cushman will be glad to answer them. Address him in care of Home Movies or his residence, 504 Stanton Avenue, Ames, Iowa. In explaining your title troubles, include information such as type of equipment used, film, light source, and where possible, send along a sample of the title film. Enclose a self-addressed stamped envelope if you wish an early reply.
Q. / wish to use one of the lenses from an old pair of spectacles as an auxiliary lens for my titlcr. How can I determine the diopter rating of such a lens? — E.T.G., Bronx, New York.
A. Find the focal length of lens and divide 40 by the figure obtained. Thus, if focal length is 10 inches, diopter rating is 4. To deternrne focal length, hold leens before a sheet of white paper so it will project upon paper the image of a scene about 100 yards away. When image on paper is in sharp focus, measure distance between lens and paper. Result gives focal length.
Flowever, unless your lens is a simple plano convex or concave-convex clement, it is not recommended for titler use.
Q. The titles regularly printed on this page arc too small to fit title area of my titlcr. Will using a different auxiliary lens before the samcra enable me to reduce size of field and thus take in title exactly as it is? — M. K., College Station, Texas.
A. Yes, but it will also be necessary to move your title closer to the camera. If you use a different auxiliary lens, it will provide for either longer or shorter focusing distance. For example, say your titler provides shooting titles 10" f'om camera. It is fitted with a 4 diopter lens. Movie the title to a point 8" from the camera and replace the 4 diopter auxiliary lens with one of 5 diopters.
Q. Why is it that use of shims or extension tubes with a lens requires an increase of exposure over normal, yet auxiliary lenses, which accomplish the same purpose, do not? —D. H. T., Tampa, Via.
A. To be technically correct, the use of shims or extension tubes does not alter exposure. Moving a lens away from the film plane reduces its speed and therefore changes its f value. For complete explanation of this, see W. E. Clymas' article on Extension Tubes on page 3 1 1 of the August 1942 issue.
Q. / follow your articles on titling regularly but hai r not as yet read anything on the subject of punctuation of titles. — S. G. Deni er, Colo.
A. Where a sub title is a complete sentence, as it should be, it should be marked by ordinary punctuation with periods, commas, etc., as found in every day writing of English.
TITLES
By EDMUND TURNER
SEKlES