Ttl+models+carina+zapata+003

She stood up, dusting off the gown. She was Carina Zapata, Unit 003. Her time was supposed to be limited, but tonight, she had decided to live forever.

Most amateur photographers use manual flash. They guess the power, take a shot, review the LCD, and adjust. TTL, on the other hand, uses a pre-flash. The camera measures the light bouncing off the subject (Carina) through the lens , calculates the perfect exposure in milliseconds, and fires the main flash. ttl+models+carina+zapata+003