Free Edition and Professional Edition difference
◎The future will add more features
◎Easy to operate.
◎Simple measurement of exposure.
◎Can automatically detect ambient light, to get the correct exposure value.
◎Program open method to use professional light meter,precision high.
(Different phone may have a slight error)
How to use:
1.Phone placed on the need to measure the location of.
2.Try to adjust the phone facing the light source.
3.ISO plus or minus button to select the same with your 4.camera ISO setting.
5.Press the Start button can get an exposure value.
6.Use the up and down to select the desired combination of exposure.
Note: some models of the HTC and Sony and LG does not support