Dear all,

I wanna learn photography (like aperture, shutter speed or ISO). My main interest is dslr. however, my concern is that it is too bulky..i dont think i will wanna carry a 0.5kg item around me in the city..then i come acorss mirror less camera like sony nex 5. is there any difference in terms of image quality? Can i use lenses for dslr on a mirorless camera (thats if i have the mount specific for my mirorless camera) ? In long term, i would like to take macro picture like bugs/flowers... will a mirorless give me a great picture?

basically, what are the main difference between these 2 type? why would ppl choose a bulky dslr over the mirror less camera ?