About this filter set, unfortunately I can only report negative.
- Inverted Graduation filter had with me significant errors in the courses (speckles and different light and dark spots)
- The polarizing filter could no longer screw from the round filter holder out because the thread was very poorly finished.
- Rectangular filter holder had two threads in chips, which were to be difficult to make out
- Filter discs made of soft acrylic
- Adding filter-holders is hardly possible in the field. Bolts and nuts have to be screwed simultaneously. However, this is only possible on smooth surfaces
- Screws are very far above - can not be transported together with cameras in my backpack. Scratching may cause the bodies and lenses.
The filter set is for thus has extremely poor quality.
