Photography and the Public Analyst

of the lighting, development and printing technirlues involved. Two years ago it was decided that it would be an advantage to hare a camera in this laboratory capable of a wide range of uses and not limited to photom jcrography only. A thorough examination of the available types of “arne.u *as made with a view to obtaining an inslrument with maximum flexibility. The type most suited to this requirement is that known as the “Single Lens Reflex”, with a “seen through the lens” viewing system. Of the modils available we purchased an Edixamat Reflex Model D camera with various accessories, The camera is a 35-mm model. The viewing screen is fitted with a waist- level viewfinder and a plano-convex lens ground on the under-side, incor- porating a 4 x magnifier for more accurate viewing. The camera lens serves Lotn foi taking the picture and also for focusing, the proposed picture being seen the right way up but laterally reversed.