What is the flat lens that protects the camera lens?
Should be UV mirror, the above can also find UV words. The main function of this thing is to filter the UV, because the price is cheap, it is also used to protect the lens.
So now generally use UV mirror to protect the lens, generally about 100 yuan to buy a better multi-layer coating products.
This model to see how much the thread is the lens, if it is 18-55 sets of head, I remember it seems 52 mm it
You put the words on the lens so that you can know the size
That can use a variety of lenses
Have a dedicated lens protection mirror
There are UV mirrors
There are sky mirror
Which lens protection lens only protect the lens function, the price is not low, the effect of light mirror almost can not see
