1， UV: double-layer coating， light transmission rate of 95%;
2， MC UV: multi-coated， light transmittance of 97%， compared translucent UV mirror has been improved to some extent;
3， L37 UV: Super coating， light transmittance of 99.9%， translucent best;
4， PROTECTOR PRO 1D (W): multi-coated protection glass， light transmission rate of 99%， specifically for ultra-wide-angle lens to avoid vignetting.
5， MC-UV PRO PRO 1D UV (W): Digital multi-coated with a UV filter， light transmittance of 99% devoted and wide-angle lens to avoid vignetting， with suitable digital successive diagonal， can absorb large amounts of ultraviolet light， eliminate mist and increase image clarity.
6， Kim MC PROTECTOR: multi-layer plating touch protective glass， light transmission rate of 99%， eliminate mist and increase image clarity， specifically for ultra-wide-angle lens to avoid vignetting

Origin: Japan
Kenko As a world-renowned brand， excellent quality UV production， market sales of the first， Kenko filter cost is very high.
UV mirror is mainly used to prevent the fingers touch the lens， the dust into the lens.
Note: Due to bumps during transport， the lenses may pop spring， it is a normal phenomenon， just gently press back then.

UV mirror effect:

1， protect the lens， avoid direct contact， causing injury;

2， absorb ultraviolet rays in the atmosphere， eliminate mist and increase image clarity;

3， Thanks to the coating process， can contribute to balanced color reproduction
KENKO As a world-renowned brands， excellent quality UV production， almost imperceptible any impact on the quality.
Sided UV coating is coated on both sides of the lens layer of film， to ensure that more than 90% transmittance. Because less coating， the price is cheap， easy to maintain， unlike the super multi-layer coating and the coating can easily spend， double-sided coating is very easy to clean
UV is mainly used to prevent the fingers touch the lens， the dust into the lens. As UV filter function， but it added a second.
In addition， prior to such use CPL filter， try to remove the UV， can reduce the chance of the emergence of the image circle， to improve image quality.
When the light is on， in particular night， remove the UV. Glare caused by uneven or lens would be more severe. After all， not an integrated camera， cuffs inevitable that errors.