2.70 1/15 s	2.70 1/20 s	3.40 1/20 s	3.00 1/20 s

2.70 1/30 s	2.70 1/90 s	2.70 1/60 s	2.70 1/60 s

4.10 1/180 s	5.60 1/250 s	2.70 1/90 s

sunny.b production