Olympus E-510 has a 10.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . You can shoot at maximum resolution of 3648 x 2736 pixels with aspect ratios of and 4:3. E-510 has a native ISO range of 100 - 1600 and it can save files in RAW format which gives you a wider room for post processing.
Olympus E-510 is not the highest resolution Four Thirds camera. Panasonic GH7 with its 25.0MP sensor is leading in this class. Check the comparison of Olympus E-510 vs Panasonic GH7 or take a look at Highest resolution DSLR cameras list.
Olympus E-510 DxOMark Sensor Scores
DxOMark is a benchmark that scientifically assesses image quality of camera sensors. Olympus E-510 sensor has been tested by DxO Mark and got an overall score of 52 for its image quality. You can find the details of their analysis of Olympus E-510 here.
Let's look at how the size of the Olympus E-510's Four Thirds sensor compares with other standard sensor sizes.
Comparison image of Olympus E-510 Sensor Size with other standard sensors
Sensor size is what determines the circle of confusion, and therefore how much
depth of field Olympus E-510 gives you at any given aperture.
You can
calculate
the exact depth of field for the Olympus E-510
at any focal length, aperture and subject distance, including the hyperfocal distance
for landscapes and the very shallow focus zone you get with long telephoto lenses.
