We may think that sunshine is the same everywhere, but that is not the case. In Australia sunshine is more intense. This has to do with the fact that the sunrays enter the atmosphere at a steeper angle and that there is less air pollution overall. This results in very intense sun, which many a visitor can attest to, not only from sunburn, but also from black shadows in otherwise correctly exposed pictures. I am to belive that this effect drove many film makers nuts.
The black shadow may also get you into an argument with partners and spouses, which are complaining why their faces can not be seen under the suncap.
Of course the same sun can allow a photographer to create highly dynamic images.
So just be beware when you take pictures in Australia. Apart from sunscreen and protection, point your exposure metering at the subject you want to expose correctly. If you have HDR this can help and using RAW files, highlights and shadows can somehow be controlled. Of course older DSLR’s or compacts, may not have the inherent dynamic range to cope with these lighting conditions.
Using a polarizing filter may also help, since the blue sky can be intesified and darkened and the camera exposure meater than tries to compensate by brightening the image and with it, the shadows.