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The apparatus herein described embodies two unique features: (1) simplicity and (2) construction from standard equipment.
The camera is a "filmo 8," using 8 mm. film. It is equipped with a Taylor-Hobson F. 2.5 universal focus lens opened to its widest aperture. The focal image obtained at a short working distance, which in our case is 10½ inches (26 cm.), is sharpened by the addition of a front lens. The source of light consists of three 4 watt bronchoscopic bulbs, of which one is carried in its usual channel and the other two are carried in a holder which clips onto the laryngoscope.
A connecting brass tube is made to fit snugly onto the sleeve of the camera lens (A) by a tight sliding joint (fig. 1). The other end of this tube is threaded to receive a no. 3 Leica (F. 3.5) front lens (B). Attached to the collar
SOLO A, FINEBERG NL, LEVENE G. SIMPLIFIED APPARATUS FOR LARYNGEAL CINEMATOGRAPHY. Arch Otolaryngol. 1939;30(3):437–439. doi:10.1001/archotol.1939.00650060471012
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