Large Four Thirds (17.3 x 13 mm) sensor Large sensor in Olympus E-620 ensures a good low light image quality compared to smaller sensor, and it also provide shallow depth of field and a nice blurry background when needed.
Large Body Even the smallest lens attached to this body will be a burden to carry everywhere with you.
500g Carrying this weight all day may not be very comfortable for you.
Body Thickness 60mm With a thickness of 60mm,Olympus E-620 is not a pocketable camera for sure.