Gossen sixtar exposure meter operating instructions . Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Gossen sixtar exposure meter operating instructionsGOSSEN OPERATING INSTRUCTIONSDiffusing sphere for incident light measurement Measuring pointer Combined sensitivity inge changing switch and pointer lock Control ring for follow" pomter ASA film speed scale Setting disc for ASA and DIN film speeds Lug for neck corIndex mark for battery checking “Follow" pointer Exposure time scale Lens aperture scale Cine filming speeds (frames per sec.) DIN film speed scale Light Value scale (red figures)