Yongnuo YN50mm F1.4C firmware v1.09

V1.09 2020/8/6

1. Improve stability

V​1.08 2020/4/3 Fix the err problem when using F1.6 aperture in TV mode

V1.06 2018/12/27

1. Repair the problem that 7D II camera can't focus automatically
2. Other improvements

V1.05 2018/12/11

1. Repair the problem that EOS M6 camera can't focus automatically
2. Other improvements

V1.04 2018/10/13

1. Optimizing the stability of video recording

V1.03 2018/6/27

1. Optimize AF Performance
2. Fix the i​naccurate exposure, when the lens is used on the 80D/6D II camera
3. Other improvements

V1.01 2018/6/22

1. Improve the compatibility of SLR camera;
2. Improve the compatibility of eos-m camera;
3. Fix some camera focus less problem;
4. Other improvements.