In some lighting situations, the SunEye screen can be difficult to read. The screen is ?transflective? which means it will actually use reflected light. So brightness may increase when you reflect the sun toward your eye more directly. This may seem counter-intuitive. Also, shading the screen sometimes helps in some situations, although it can be quite tricky to shade the screen with something that does not get in the way of the camera. Usually it is best to shade the screen when setting up and ensuring that you have it ready, then position with compass and level (which you can still see), and take the picture. In this case, it may help to use the center NAV button instead of the pressing SNAP on the screen. These operations both perform the same function, but the NAV button shown below may be much easier to see.