6 ms·

Will this really work? Cameras are by design able to accurately control the rate (and duration) of light they let in to create an image.

• astrange 11y ago
  For known cameras like iPhone, that shouldn't hurt since you can read the exposure time out of the EXIF.
• Veratyr 11y ago
  If you can also get accurate white balance, you may be able to get useful information from the colour of the sky as an alternative.