Through the Lens, used when talking about either an autofocus or auto exposure system that works through the camera’s lens.
TTL
DISCLOSURE: "THIS POST MAY CONTAIN AFFILIATE LINKS/BANNERS, AND THE SITE MAY EARNS A SMALL COMMISSION WHEN YOU BUY THE PRODUCT AT NO ADDITIONAL COST TO YOU. WE RECOMMEND THESE PRODUCTS BECAUSE OF THEIR TOP QUALITY AND LOW PRICES".
