SLR camera lens must be installed UV mirror?
UV mirror is not non-loaded can not, the previous SLR installed UV mirror is to weaken the impact of UV imaging, SLR is now basically the CMOS sensor, UV mirror to become the role of the protection of the lens. Installed not installed to see the individual, installed to protect the lens, but how much will affect the amount of light, there are advantages and disadvantages.
The new lens to buy the best or to install, one can protect the lens; Second, a good UV mirror can also filter the light does not need to make the film out more clearly.
Installed UV mirror has two advantages: to reduce the glare stray light, to protect the lens is not rubbed.
But more or less will affect the amount of light, and the market quite a mixed bag, some lenses can cause imaging or even distortion. So it is necessary to install a good equipment.
