After scolding my phone camera for its poor quality, I remembered that it seems to use to be better. So I decided to clean the camera thingey with ethanol (that's what happens when you work in a lab, you clean everything with ethanol -__- hurhur) and guess what happened?! voila~ it became so clear!!
i'm sorry phone for misunderstanding you. but crap my skin is really really bad these days >___<