American cinematographer (Jan-Dec 1926)

Record Details:

Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

Sixteen AMERICAN CINEMATOGRAPHER November, 1926 WHETHER for interior or outdoor shots, Zeiss Lens equipment on your camera insures results. No matter how thorough your methods, how good your lighting or how elaborate your settings, the Sinai result will be better — 'whenever and whereever Zeiss Lenses are employed. CARL ZEISS, Inc. 485 Fifth Ave., New York Formerly H. M. Bennett) A NEW LENS "That has made good" Large aperture F:2.3. To a large extent responsible for the Bas-relief, or solid appearance of the subject on the screen. Good definition over the entire field, yet not harsh or wiry. A portrait lens in short focal lengths 40mm, SOmm, 75 mm,, with full closing diaphragm. Price is reasonable 40mm $50.00 50mm 50.00 75mm 55.00 A Trial Will Be Satisfying ASTRO-GESELLSCHAFT, mbh., Berlin FOR SALE BY MITCHELL CAMERA CORPORATION 6025 Santa Monica Blvd. Los Angeles, Calif. AMATEUR CINEMATOGRAPHY (Continued from Page ed because of the number of optical phenomena that can be explained by it. Science is very exacting in its definitions and Huyghens' explanation is still called a theory, or supposition, because its truth has not been proven by material facts. According to the undulatory theory, all spaces and bodies within and without the earth's atmosphere, are filled with an extremely elastic fluid called ether. Ether, supposedly pervades all interstellar spaces, and exists between the molecules of all substances, from the rarest of gases, to the densest solid in existence. A luminous body communicates to the ether the extremely rapid vibrations of its molecules, and these vibrations are propagated in all directions by ether, in an undulatory motion, very similar to the ripples produced on the surface of stagnant water, by a rapid shock or disturbance, as caused for example by a pebble or stone thrown in a calm pool. The rapidity of the ether luminous waves is prodigious, and the length of the undulations or vibration is infinitesimally small. ft is of great interest, to compare the ether undulations producing light, with the undulations producing other physical phenomena. Sound, for instance, is produced by undulations produced in the air, very similar in their deportments to the ether undulations. This similarity is, in fact, one of the strongest arguments brought forth in the discussion of the truth of the undulatory theory. When striking the legs of a diapason, or tuning-fork we actually see the rapid vibrations of the instrument. These vibrations transmitted to the surrounding air produce a sound. If we touch the legs of the diapason with the hand, we stop the vibrations of the instrument, and sound ceases. As the amplitude of the sound waves produces a difference in the intensity of the sound, so the difference of amplitude in the light waves produces a difference in color. Apparently, light of all colors, is transmitted at the same velocity in vacuo, even in air, the difference of velocity in these two media