GENERAL DESCRIPTION OF THE CAMERA 



The NEL Type III Deep-Sea Camera consists of a watertight arrangement of a 

 spring-wound 35-mm robot camera, a 2000-volt electronic power source of commercial 

 design, a flash tube in a clear plastic envelope which is mounted within a water-filled 

 aluminum reflector, and a small oil-filled tripping switch (fig. 1). A rigid lightweight 

 frame of steel serves to hold the watertight case and junction box which house the 

 camera, fiash unit, and electrical power supplies in the proper oblique relationship 

 to the ocean floor.-'^ The watertight case which is mounted near the top of the frame 

 is a thick-walled cylindrical tube of forged aluminum with an internal diameter of 9 

 inches and an internal length of 14 inches. It is equipped with a clear quartz port in 

 the detachable head to allow the self-contained camera to look out. The illumination 

 control unit and all necessary power supplies are packaged with the camera for more 



LIFTING EYE 



ALUMINUM 

 CAMERA CASE 

 HEAD 



STEEL FRAME 



PLASTIC FLASH 

 TUBE ENVELOPE 

 & FLASH TUBE 



SAFETY PIN- 



;| HANDLES 



STAINLESS STEEL 

 JUNCTION BOX 



TRIPPING LEVER 

 SPRING LOADED 



FEET 



FIXED TRIPPING 



LINE 



LEAD WEIGHT 



Figure 1. NEL Type 111 Deep-Sea Camera. 



