3 ms·

That’s true, I edited my comment to note phosphorus-coated LEDs, but that coating still leaves spectrum with gaps and bumps. Besides, the more coating you add,

That’s true, I edited my comment to note phosphorus-coated LEDs, but that coating still leaves spectrum with gaps and bumps. Besides, the more coating you add, the less bright or energy efficient your lights get, and sets can require very bright lights. Other issues, such as PWM flicker coinciding with your FPS and shutter angle or LED controller interference in audio recording, remain. From my understanding, today mature LED-based solutions can only mitigate these issues with varying success, not eliminate all of them entirely, all this mitigation adding complexity and cost, while on the other hand one could just use a black body emitter so that those issues are not technically a thing, and try not to set things on fire.

kuschku 3y ago
If you try out the newer ARRI LED based solutions such as the new Skypanels, they've fixed that entirely. And even low-budget lights such as the newer Aputure ones produce an amazingly even spectrum (though their cheapest products have a bimodal distribution)
- strogonoff 3y ago
  Those that sell for $4k+ USD? Perhaps they mitigate these issues (can’t find any research that compares the spectrum to black body and addresses the other issues), though not sure if they are more budget effective if you have a well fire hazard trained crew.
  - kuschku 3y ago
    They don't just mitigate them, they're entirely free of them. There's a reason Skypanels are standard on every single major hollywood production nowadays. That said, if you need a lot of light, halogen is without alternative. There's a reason the ArriMAX with its 18kW halogen lamp is still popular.
    - strogonoff 3y ago
      > They don't just mitigate them, they're entirely free of them. I believe they still use PWM to dim, and you still need to work around the flicker by choosing the right frequency depending on your FPS and shutter angle. They help by making PWM frequency configurable but that is mitigating the problem not eliminating it.

kuschku 3y ago

If you try out the newer ARRI LED based solutions such as the new Skypanels, they've fixed that entirely. And even low-budget lights such as the newer Aputure ones produce an amazingly even spectrum (though their cheapest products have a bimodal distribution)

strogonoff 3y ago
Those that sell for $4k+ USD? Perhaps they mitigate these issues (can’t find any research that compares the spectrum to black body and addresses the other issues), though not sure if they are more budget effective if you have a well fire hazard trained crew.
- kuschku 3y ago
  They don't just mitigate them, they're entirely free of them. There's a reason Skypanels are standard on every single major hollywood production nowadays. That said, if you need a lot of light, halogen is without alternative. There's a reason the ArriMAX with its 18kW halogen lamp is still popular.
  - strogonoff 3y ago
    > They don't just mitigate them, they're entirely free of them. I believe they still use PWM to dim, and you still need to work around the flicker by choosing the right frequency depending on your FPS and shutter angle. They help by making PWM frequency configurable but that is mitigating the problem not eliminating it.