Large APS-C (23.6 x 15.8 mm) sensor Large sensor in Nikon D80 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.
668g Carrying this weight all day may not be very comfortable for you.
Body Thickness 77mm With a thickness of 77mm,Nikon D80 is not a pocketable camera for sure.