Olympus E-620 Digital Camera Review at About.com – Kyle Schurman on the E620's image quality:
At 12.3 megapixels, the Olympus E-620 has plenty of resolution for large prints. Photo quality is very good most of the time, although you may have to adjust some of the manual settings in low-light situations, and shooting at high ISO settings results in very grainy photos.
Rating score for the camera was 4 / 5 stars.