Practos II exposure meter
Visual extinction meter employs rotating continuous wedge with numbers seen in telescope tube at the same time as a blue filtered image of the scene. Calibrated for film speeds 75-5500 H&D, 11-29 degrees. Sch.:f/nos.1.3-48. The shutter speeds are 1/400sec-60 minutes. FPS 1-128, With depth of field tables for 3 focal lengths. Practos, Hamburg.
Details
- Category:
- Photographic Technology
- Collection:
- Kodak Collection
- Object Number:
- 1990-5036/1806
- type:
- exposure meter
- credit:
- The Kodak Collection at the National Media Museum, Bradford
Parts
Instructions Sheet for Practos II Exposure Meter
Practos II exposure meter instructions sheet
Practos II Exposure Meter
Visual extinction meter employs rotating continuous wedge with numbers seen in telescope tube at the same time as a blue filtered image of the scene. Calibrated for film speeds 75-5500 H&D, 11-29 degrees. Sch.:f/nos.1.3-48. The shutter speeds are 1/400sec-60 minutes. FPS 1-128, With depth of field tables for 3 focal lengths. Practos, Hamburg.
- Object Number:
- 1990-5036/1806/3
- type:
- exposure meter
