DHG
Special Coating: New developed ultra-low reflection coating for digital camera does minimize flare and ghost.
Black-ink Processing on Lens' outer rim & Special Frame: Minimize reflection

Red:
Featuring special optical glass developed by MARUMI.
The REDHANCER enhance only red color tone slightly without affecting whole tone of pictures.

The Red Intensifier also known as a 'didymium' or red enhancer filter, is used to enhance red, orange and brown subjects to give more color saturation and contrast, while having very little effect on other colors. It can be used in many situations such as architecture where certain building features need emphasizing, or for landscapes to enhance foliage and rocky features.

Green:
The GREENHANCER is the first green color enhances filter series of the world.
Effective both under ordinary and back ray.
They do engage to re-create bright greenness of new green leaves and mosses.

The Green Field intensifies and enhances colors in the Green region of the spectrum, without adversely affecting other colors.
It is particularly useful for outdoor shots, which include nature, landscapes and water.

Blue:
A just "Blue colored" filter brings out only bluish pictures.
The BLUEHANCER can emphasize blue tone and chroma of cloudy sky and seawater.
The BLUEHANCER does not affect other color tones and is suitable for capturing objects along with whitish area.

The Blue Intensifier intensifies and enhances colors in the Blue region of the spectrum, without adversely affecting other colors.  It is particularly useful for brightening seascapes or cloudy skies, but also suitable for when, due to the sun's direction, polarizing filters are ineffective in increasing the saturation of a blue sky.