In photography, TTL refers to "Through-The-Lens" flash metering, where the camera measures light through the lens to set the flash power automatically. Canon EOS Magazine What's Interesting
: A series of free videos focused on creating professional-looking portraits using TTL [3, 8]. Equipment to Consider i--- Ttl Models Free Videos
: Use Center-Weighted Average or Evaluative/Matrix metering. These modes tend to handle skin tones well and provide a balanced exposure for portraits. TTL refers to "Through-The-Lens" flash metering