READ GLASS FILTER 10MM BIG STOPPER ND 10 100X100MM/2

READ GLASS FILTER 10MM BIG STOPPER ND 10 100X100MM/2

Calculating the correct exposure for a long exposure filter is very simple, take a meter reading as normal WITHOUT the filter in place, and decide the aperture required for the shot. if you use a 10-step long exposure filter, you must add 10 exposure stops at the shutter speed that matches the chosen aperture (double the exposure length 10 times). for example, an exposure measured at 30° of a second at f11 should be increased by 10 stops, which would generate a new exposure time of 32 seconds. a practical card is supplied with a practical filter with a 32-second exposure time filter.

a practical card is supplied with a practical filter.