Lars
Active member
Hi forum,
I need to calculate exposure (shutter, aperture, ISO) for an LED flash, given output in lumen, subject distance, and medium gray reflection.
Exposure time will be shorter than flash duration, so for all practical purposes the light source is continuous.
Looking for resources on how to calculate this.
Thanks,
-Lars
I need to calculate exposure (shutter, aperture, ISO) for an LED flash, given output in lumen, subject distance, and medium gray reflection.
Exposure time will be shorter than flash duration, so for all practical purposes the light source is continuous.
Looking for resources on how to calculate this.
Thanks,
-Lars