Samsung gx-1 User Manual (en)

Setting the Exposure
ƃ Turn the e-dial while pressing the             button and change the EV Compensation value.
ƃ Set the aperture value in increments of 1/2 EV or 1/3 EV. Set in [Expsr Setting Steps] in the 
[      Custom Setting] menu. (p.141)
ƃ You can automatically correct the sensitivity if appropriate exposure cannot be set with the set
criteria. Set [Sensitivity] to [AUTO] in the Fn menu. (p.115)
Exposure Warning
If the subject is too bright or too dark, the shutter speed will blink
in the viewfinder and on the LCD panel. If the subject is too
bright, set the aperture
smaller (larger number), and when too dark, open the aperture further (smaller number). 
Once blinking stops, you can take the picture.
If both the shutter speed and aperture value are blinking, this indicates being out of metering range
and the proper exposure cannot be obtained even if the aperture is adjusted.
Use an ND (Neutral Density) filter if the subject is too bright.
Use a flash if it is too dark.