Model Number: YN2.0X II Brand Name: YongNuo Key Specifications/Special Features: YN2.0X II is the updated version of YN2.0XMagnification: 2 timesCoating: multiple coatingLens composition: 7 elements in 4 groupsBarrel diameter: 68mm (approximately)

Redesign of the upgraded electronic aspect make the auto-focusing function of teleconverter able to adapt to more lens

Such as the EF70-200MM F/2.8 L IS II, the EF70-200MM F/2.8 L IS II USM and most of the lens can achieve automatic focusing

Appearance is more elegant and high-grade