On-site lighting photography technology

Although we pay attention to the photographer's skills rather than the camera in this class, live light photography is a leading city where advanced photographic equipment plays a real role.

A long time ago, under most indoor conditions, it was almost impossible to shoot live light photography. At that time, f/3.5 lens and ISO50 film were relatively fast. Nowadays, it is common to use lenses with f/2 and larger caliber, and ISO400 film is easy to buy-even color film. (Some films can be developed by force, and exposure value can increase it to 10000.

Finally, most exposure meters, such as gallium photodiodes, can measure readings in almost all black conditions and give accurate exposure combinations (but pay attention to the failure of reciprocity law, which we discussed in the exposure class). Although the exposure meter can give accurate readings in almost dark conditions, the film may need a long exposure time to make up for the failure of reciprocity law.