Manual Exposure Mode
A correct exposure of a landscape shot is very important. Even though modern digital cameras features advanced algorithms to calculate the right exposure, they still may fail some difficult conditions. Manual exposure mode in these conditions helps a lot in order to achieve correct exposure. Manual Focus Mode
With the manual focus mode, you can make fine adjustments to have the perfect focus. 24 mm - Good Wide Angle Coverage
Even though there are very good examples of landscapes photos taken with tele lenses, most of the landscape photos are taken with wide angle lenses. RAW shooting capability
RAW files contains much more color information compared to JPEGs, and gives you more room for post processing without significant quality loss. They provide wider dynamic range and option to recover shadow and highlight clipping to some degree. Very High Resolution Sensor: 20.0MP
Sony RX100 III's 20.0MP sensor is perfect for landscape photography. It will capture a lot of fine details and let you print them larger.
Average sized 1″ (13.2 x 8.8 mm) sensor
Sony RX100 III's 1″ (13.2 x 8.8 mm) sensor size doesn't provide image quality of larger sensors but it is still much better then compacts with typical small sensors.
No Environmental Sealings
Landscape photographs are taken outdoors and you should be prepared for all kind of weather conditions.