Key FeaturesBuilt-In 2.4GHz X Wireless Radio SystemGuide Number: 197' at ISO 100 and 200mmZoom Range: 24-200mm (14mm with Panel)Tilts from -7 to 90°Show MoreEquipped with a built-in 2.4GHz X wireless radio system and a powerful guide number of 197' at ISO 100 and 200mm, the TT600 Thinklite Flash fr..