pwm

  1. J

    Minimum PWM Frequency to Avoid LED Video Flicker.

    Anybody have thoughts on the minimum PWM dimming frequency an LED light needs to have to avoid on camera flickering? I've heard answers ranging from 1000 to 3000 as well as 20 times the frame rate. The question is in regards to the Martin rush par which has a PWM frequency of 2000 hz. Using a...