Olympus SP-600 UZ has a 12.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features TruePic III processor. You can shoot at maximum resolution of 3968 x 2976 pixels. SP-600 UZ has a native ISO range of 100 - 1600 but unfortunately, Olympus SP-600 UZ doesn't have RAW file support. If you need a Compact camera with a RAW support, consider Nikon Coolpix P7800 or Leica Q (Typ 116) in the same price range.
Olympus SP-600 UZ is not the highest resolution Small Sensor camera. Canon SX740 HS with its 21.0MP sensor is leading in this class. Check the comparison of Olympus SP-600 UZ vs Canon SX740 HS or take a look at Highest resolution Compact cameras list.
Let's look at how the size of the Olympus SP-600 UZ's 1/2.3-inch sensor compares with other standard sensor sizes.
Comparison image of Olympus SP-600 UZ Sensor Size with other standard sensors
Sensor size is what determines the circle of confusion, and therefore how much
depth of field Olympus SP-600 UZ gives you at any given aperture.
You can
calculate
the exact depth of field for the Olympus SP-600 UZ
at any focal length, aperture and subject distance, including the hyperfocal distance
for landscapes and how close you can get before the focus zone becomes too thin.