Pair of 49mm filters that cover practically 99.9% of the needs of a lens, even of great sharpness.

The ND filter is a simple object from a construction point of view, but the glass is of excellent quality. There is practically no difference in sharpness, while you can see a slight advantage in terms of contrast where there is direct light on the front lens. It is basically mostly a protection for the lens, without any degradation of image.

The Polarizing filter is already more complex: from a construction point of view the rotation friction is just right, not too rigid but not even allowing accidental rotations.
it is certainly of the circular type because it does not introduce delays in automatic focusing.
The degree of filtration, although very difficult to measure, I find to be high, so much so that it is advisable to expose with at least one automatic to simplify the exposure. The selection of incident/reflected light is very decisive, you can see it even with a pair of simple bulbs (see photos).

Also included are a pair of caps and a strap, as well as two boxes to store the filters and some cleaning cloths.

Very complete kit, once you get it you have practically solved all the needs on the 49mm

Recommended, excellent quality of both glasses