From the various choices of exposure mode, there are two that are of interest in landscape photography, Aperture Priority and Manual, as they allow control of aperture selection – which is important, as it’s one of the factors that controls depth of field. The key difference is that in Manual you have to also select the shutter speed, whereas in Aperture Priority, the camera does this; however, it’s possible to override the camera’s choice using the exposure compensation facility.
Both are viable options, depending on the conditions. In rapidly changing light, for example at dawn or dusk, Aperture Priority may be the better choice, as it frees you up from having to constantly meter the scene and adjust the shutter speed, thus allowing you to better concentrate on other things,…