Photographers are usually happy when there is plenty of light. But there are also situations where you want to reduce the amount of light, for example to generate long exposure times. ND filters are the perfect tool for this. The set of three ND filters reviewed here contains three ND filters (ND8 / ND64 and ND1000), allowing an exposure increase of 3 / 6 or 10 f-stops with a single filter. If necessary, the filters can also be combined to allow for additional values. The filters are delivered individually packaged in a practical storage case which, when folded up, doesn't take up much space in your camera bag or backpack. The first positive thing I noticed during testing: the filters screw easily into the thread of my 67mm diameter lenses. Removing them is also easy and is assisted by the ribbing on the filter frame. I tested all three filters for light reduction and achieved a suitable increase in exposure time in each case. However, with the ND1000 filter attached, the autofocus no longer worked. You should focus manually without the filter first and then use the filter. During my initial tests, I didn't notice any disturbing color deviations. The package includes three individually wrapped cleaning cloths, which I'm sure will come in handy sooner or later. My conclusion: A well-designed ND filter set with an attractive price-performance ratio. It's worth 5 stars in my opinion.