Environmental Sealings For a camera that you carry everywhere with you, being weather proofed is a big advantage. You will have one less thing to worry about.
26.0X Optical Zoom 26.0X Optical Zoom of Olympus SP-590 UZ will give you a lot of flexibility considering this will be your only camera during the day.
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.
Medium size Body With relatively smaller body compared to DSLRs and better ergonomics compared to Compacts,Olympus SP-590 UZis a good compromise between size and functionality.
413g Carrying this weight all day may not be very comfortable for you.
Body Thickness 81mm With a thickness of 81mm,Olympus SP-590 UZ is not a pocketable camera for sure.
Small 1/2.33 sensor Olympus SP-590 UZ's small sensor struggles in low light situations compared to larger sensor.