"LO" means the exposure for those area needs more than 30 seconds. alternatively, you can adjust the aperture to bigger value until the shutter speed shows a value, then reset the aperture to the desired value and calculate the time for exposure.
LO表示照片曝光超过30S,作为选择,你可以调大光圈直到快门速度显示一个值,然后重设光圈到理想值并计算曝光时间
出问题的时候,屏幕左下会有个问号,你点+这个按钮就能看见内容了 中文解释