: It instantly calculates the power needed to achieve a "neutral" exposure (aiming for 18% gray).
: The flash fires at that specific power as the shutter opens. Ttl Models Images
is an automated camera technology that calculates the correct flash exposure by measuring light after it passes through the lens. 📸 What is TTL? : It instantly calculates the power needed to
Instead of manually setting flash power, the camera and flash communicate to determine settings. Ttl Models Images