New rear lens filter to meet the needs of landscape photographers

An ultra-wide angle lens where a filter cannot be mounted in front of the lens and allows you to shoot using ND filters without the use of a large filter holder, increasing the range of expressions.
This is a clear night filter (light pollution reduction filter) specifically for night sky photography.
Made of high quality K9 optical glass, the effect of image quality is very small compared to gelatin filters.

Reduces the effect of street light affecting shooting at night sky, allowing natural color reproduction.
Absorbs the color of the yellow sodium lamp and keeps the color of the cabri.
● Uses high quality K9 optical glass.
The Nano coating prevents reflections and scratches also has a water-repellent effect.