Photoelectric exposure meter. Two sensitivity ranges calibrated in shutter speeds /4-/500, 120-/2. DIN 6-21 Sch.17-32 degrees scales. Aperture range f/1.5-50. Integral sliding protective case. Cylindrical lens over photocell. No. 50872. Sixtus exposure meter 1939-1949
Binocular operating microscope on fully adjustable Fisher stand, by Vasconcellos, Brazilian, 1955-1970 Binocular operating microscope on fully adjustable Fisher stand 1955-1970
Gossen. Made in West Germany. Photoelectric exposure meter. Scale calibrated 1-12. Rotating roller with aperture scales from f/1.4--45. Fixed shutter speed speed scales 8 secs-1/500 sec, 8-64 fps. ASA speed range 21-800. Rolltop blind in white plastic for incident light readings. 'Colour Finder' scale - step wedge in red calibrated 2,600, 3,200, 4,000, 5,800 and 10,000 OK, with comparison patch. No X273169. In leather case with instructions (filed). Sixon Exposure Meter and Case 1955
Photoelectric exposure meter. Direct reading, aperture scales on roller with 'follow needle' marks. Apertures read against shutter speed scale. Ranges; f/1.4-45; 30 secs-1/1000 secs; FPS 8-64; ASA6-400. 'Rolltop' white flexible blind covers cell for incidnet life readings. In leather case. Sixtomat exposure meter