3 ms·
Even easier if you have a newish phone: do a slo-mo 240fps video capture on a LED light bulb. You will see the flickering.
by copperx 8y ago
Even easier if you have a newish phone: do a slo-mo 240fps video capture on a LED light bulb. You will see the flickering.
- Zak 8y agoIf you have manual control over the shutter speed on a smartphone or other electronic rolling shutter camera, just turn the shutter speed high. It's possible to detect flicker up to at least a few kHz this way.