The diaphragm diameter was reduced by 4 times. How should the shutter speed be changed to keep the film illumination unchanged?
October 29, 2020 | Education|
The hole area in this case will decrease 16 times. If we assume that the luminous flux falling on the film is proportional to the exposure time, then the shutter speed must be increased by 16 times.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.