|
How do you know that it is underexposing by about one stop? Have you checked exposure using the histogram on the camera and on the PC? Have you got areas which begin to clip as you increase the exposure?
You don't say what metering you are using, all of them will give slightly different results perhaps any problem might lie there?
There is another possible problem occuring here, and that is if your eye is not actually at the viewfinder when you release the shutter, light will enter and change the exposure the camera thinks it needs, underexposing the shot. This is a particular problem with Macro when the camera is pointing down at flowers and there is brighter light from above, if the viewfinder is not covered the shot will be under exposed.
|