Kenko Circular Polarizer

Good polarization. Very similar to the Hoya version. Basically, I find no difference between the two except that the Hoya cost me around $80[us] new

A bit thick though.Makes you lose about 2 stops of exposure but so does the Hoya

It works just as a circular polarizer should, by twisting a ring, reflections can be easily eliminated. It also darkens blue skies and increases overall contrast and saturation. The intensity of the effect can be adjusted too

None, really ; Just watch out when turning the filter's ring, because its thin profile can cause a finger to appear in the photo

Good construction, appears that it has a mix of 81A warming filter

Wish it came in a soft case rather than the hard plastic case for carrying purposes

Price (barely)

Does not filter out all reflections