Features:

1. WN01BL25. 4-12 series can hold 12 optical elements such as density sheets and filters with diameters of 25. 4mm or 25mm.

2. A variety of filters can be used alone or in combination. When the filter is replaced by rotating the filter wheel, the center of the optical path remains unchanged.

3. Accurate positioning can be achieved through the positioning hole.

4. Simple adjustment and convenient use.