hey old bird i need your help! i new on DSLR. ok here the qns come. when i take open my lens i saw it on my rear lens there is a tiny little alot of bubble stain on the lens le! is it a fungus? or what else. dot dot really really sian alot le. haix
Ok, I'll try to translate what you are trying to say.... And what I suggest is that you try to use isopropyl alcohol or even glass cleaner or a microfibre cloth to clean it. Maybe it really is just water stains.
However, unless you post a picture of the issue, we can't really help.