KANI GND Filter 100x150mm (Framed) – Ultra Low Reflection

Long Soft GND

Premium Long Soft GND is designed with an extra-long and exceptionally gentle transition, making it one of the most natural-looking options in the KANI GND lineup. Instead of changing exposure over a short area, this filter spreads the gradation over a wider range, helping photographers create a smoother and less noticeable transition between a bright sky and a darker foreground.

This design is especially effective in landscapes where the horizon is uneven, such as mountain ranges, valleys, forests, and layered terrain. In these scenes, a standard Soft or Hard type may create a transition that feels too obvious, while Long Soft allows the brightness to fall more gradually and more naturally across the frame.

It was developed in response to requests from photographer Mamoru Watanabe, who is known for his long-term Mt. Fuji photography. In practical use, it is highly suitable for landscape photographers who want strong light control without making the gradation line visible in the final image.

Long Soft GND can also be used effectively in combination with a Switch Holder and a second lighter ND or GND filter. This makes it possible to fine-tune the darker area only where necessary, which is especially useful in mountain scenes or sunrise conditions where the light transition is complex.

Like other premium KANI square filters, this model uses high-quality German B270 optical glass with double-sided ultra-precision polishing to maintain excellent flatness and image quality. The advanced Premium low-reflection coating helps suppress flare and internal reflections, while the water-, oil-, and dust-resistant surface allows fast cleaning during outdoor shooting.

Visible light transmission remains very stable, and color cast is kept to a minimum even in long exposure photography, making it a reliable option for photographers who require both natural tonality and strong optical performance.

Soft GND

Premium Soft GND is one of the most versatile filters in the KANI GND range. It is designed with a smooth and natural gradation that gently reduces brightness in the sky while preserving a realistic and balanced transition toward the foreground. This makes it particularly effective for sunrise, sunset, dawn light, and many general landscape scenes where the brightness difference is noticeable but not extreme.

Because the transition is gradual, Soft GND works especially well in landscapes with slightly uneven horizons, such as mountains, coastlines, lakes, grasslands, and countryside scenes. It helps reduce the risk of visible filter lines, which is one of the most important factors when aiming for a natural-looking image.

This filter is suitable not only for dramatic sunrise and sunset photography, but also for daytime landscape shooting when the sky is significantly brighter than the land yet the sun itself is not inside the frame. It can also be combined with ND filters to control both brightness and shutter speed, making it useful for smoothing water, clouds, and atmospheric movement.

KANI’s Premium coating minimizes reflections between the ND area and the clear area, helping preserve contrast and clean image rendering. German B270 optical glass and ultra-precision polishing provide high flatness and dependable sharpness across the frame.

Visible light transmission is very stable and color cast is kept extremely low, even during longer exposure photography. The strong protective coating also repels water, oil, and dust, allowing the filter to be cleaned quickly with a regular cloth in practical shooting situations.

For photographers who want a reliable everyday GND filter with the most natural look, Soft GND is one of the best starting points in the system.

Medium GND

Premium Medium GND is designed with an intermediate 3cm transition area, sitting between the wider spread of Soft GND and the tighter transition of Hard GND. It is made for photographers who need stronger control than a Soft type, while still keeping a more natural blend than a traditional Hard type.

This makes Medium GND especially useful in scenes where the horizon is visible but not perfectly flat, such as rolling hills, distant mountain lines, city skylines, or mixed land-and-sky compositions. In these cases, Soft may feel too weak while Hard may feel too abrupt. Medium provides a practical balance between both approaches.

It is one of the most adaptable options for photographers who want a single filter that can handle a wide range of real-world outdoor conditions. Because the transition is neither too broad nor too sharp, it gives stronger upper-sky control while still keeping the image natural and believable.

KANI’s Premium low-reflection coating helps reduce reflections between the clear and ND areas, improving contrast and reducing flare. German B270 optical glass and ultra-precision double-sided polishing maintain excellent flatness and image sharpness.

Color shift is minimized even in demanding long exposure work, and the water-, oil-, and dust-resistant coating allows the filter to remain practical and easy to maintain during field use.

For photographers who want a balanced and highly useful “middle” option in the GND lineup, Medium GND is one of the strongest all-around choices.

Hard GND

Premium Hard GND is designed for scenes where the brightness difference between sky and land is strong and the horizon is relatively clear. It offers firmer light control than Soft or Medium types, making it especially useful when the upper part of the frame is much brighter than the foreground.

Traditional hard-edge filters can sometimes feel too abrupt and produce an unnatural separation between the sky and the land. KANI’s Hard GND is designed with a carefully controlled center transition so that the effect remains strong, but still practical and easier to use in real shooting conditions.

This makes it particularly effective for seascapes, coastlines, plains, open horizons, and other compositions where the boundary between land and sky is relatively straight. It is also useful in backlit scenes and strong daylight landscapes where the sky needs decisive exposure reduction.

Hard GND can also be combined with other filters, such as ND filters or Dual Purpose types, when stronger control is needed over a difficult and high-contrast scene.

KANI uses German B270 optical glass with double-sided ultra-precision polishing to maintain excellent flatness and image quality. The Premium low-reflection coating helps reduce flare and internal reflection, while the protective surface resists water, oil, and dust for better field usability.

For photographers working in strong daylight or horizon-based compositions, Hard GND delivers confident and dependable control without sacrificing optical quality.

Reverse GND

Premium Reverse GND is specially designed for sunrise and sunset photography, where the brightest area of light is concentrated near the horizon line. Unlike standard GND filters, which are darkest at the top and gradually lighten toward the middle, Reverse GND places its strongest density around the center and gradually becomes lighter toward the upper part of the filter.

This structure matches the actual light pattern seen at sunrise and sunset, where the horizon area is often the brightest part of the frame. As a result, Reverse GND is one of the most effective options for controlling extreme horizon brightness while preserving sky detail and maintaining a balanced exposure in the foreground.

It is especially useful for seascapes, wide landscapes, coastline compositions, and any scene where the sun is low and the horizon is clearly visible. In these situations, ordinary Soft or Hard filters often cannot control the central brightness effectively enough. Reverse GND provides a much more targeted and natural solution.

The availability of 0.6, 0.9, and 1.2 densities gives photographers more flexibility depending on how strong the sunrise or sunset light is. Lighter densities are useful for moderate horizon glow, while stronger versions are highly effective in dramatic golden-hour or backlit conditions.

KANI’s Premium low-reflection coating helps reduce flare and internal reflection, which is especially important when shooting directly toward bright horizon light. German B270 optical glass and ultra-precision double-sided polishing maintain excellent flatness and dependable image clarity.

The filter is also engineered to keep color cast low during long exposure photography, while the water-, oil-, and dust-resistant protective coating makes it practical and easy to maintain during outdoor use.

Dual Purpose GND

Premium Dual Purpose GND is one of the most versatile filters in the KANI graduated filter lineup. By simply reversing the insertion direction, a single filter can produce multiple styles of gradation effect, allowing it to behave like both a Soft type and a Hard or Reverse-style type depending on positioning.

This makes it an extremely practical solution for photographers who want greater flexibility in the field without carrying too many separate filters. In changing light conditions, a reversible filter like this can save time and simplify workflow while still delivering precise exposure control.

The 0.75 version was intentionally designed with a slightly milder maximum density than the more common 0.9, helping prevent the effect from becoming too strong in many real-world scenes. Depending on how the filter is inserted and positioned, it can simulate Soft-like control, Reverse-like control, or stronger top-area control similar to a Hard-type result.

This specification was developed through repeated testing and refinement in response to requests from photographer Junichi Date. The result is a highly practical and creative filter that supports multiple lighting conditions with a single design.

KANI’s Premium anti-reflection coating helps reduce reflections between the lens and the filter even when bright light is present inside the frame, helping maintain contrast and cleaner image rendering.

For photographers who want maximum flexibility with fewer filters in their kit, Dual Purpose GND is one of the most efficient and useful options available.

Narrow Dual Purpose GND

Narrow Dual Purpose GND is a specialized variation of the Dual Purpose Filter, designed with a narrower light reduction area than the standard version. This makes it particularly useful in situations where the brightest area of light is more localized and needs tighter control.

It is especially effective for sunrise and sunset scenes where the sun appears through narrow gaps in clouds, between mountain ridges, or within tighter compositions. In these cases, a wider gradation may affect too much of the frame, while Narrow Dual Purpose provides more concentrated and more practical control.

This design is also highly effective when using telephoto lenses. Because tighter framing often demands more precise filter placement, the narrower gradation area allows photographers to control strong light more accurately than with a standard broader Dual Purpose type.

KANI’s world-class low-reflection coating helps reduce flare and internal reflection even when the sun is included in the composition, making it suitable for more demanding golden-hour and backlit landscape scenes.

Combined with high-quality optical glass and strong protective coatings, this filter offers both practical handling and high optical reliability in situations where precise light control matters most.

For photographers working with telephoto focal lengths, localized sunrise light, or tighter compositions, Narrow Dual Purpose GND is an especially useful and purpose-driven option.

Sky Blue Dual Purpose GND

Sky Blue Dual Purpose GND is a unique graduated ND filter that not only controls brightness, but also adds a natural blue tone to cloudy or whitish skies. It is a highly creative filter that combines the function of a half ND with a subtle sky-enhancement effect.

Like KANI’s standard Dual Purpose Filter, this model can provide two different styles of result depending on the insertion direction, allowing it to behave in both Soft and Hard orientations. This makes it useful in a wider range of sky conditions than a conventional color filter.

Unlike the conventional Dual Purpose 0.75, this filter uses a gentler ND 0.6 density. This is important because it allows the sky tone to become richer without appearing unnaturally dark or heavily colored. Slightly hazy blue skies become more vivid, while nearly white skies can gain a natural and moderate blue appearance.

It is also useful in situations where a circular polarizer may produce uneven polarization in the sky. Because the blue enhancement is built into the filter itself, it can help create a cleaner and more controlled result in these conditions.

As this filter uses a special color coating, its reflection characteristics differ from those of the standard Dual Purpose Filter. In strong backlight or when the sun is directly in the frame, reflections may occur more easily, so careful positioning is recommended.

For photographers who want both exposure control and expressive sky enhancement in a single square filter, Sky Blue Dual Purpose GND offers a very unique and highly creative solution.

Main Specifications
Dimensions: 100×150×2mm
Maximum light reduction: 0.6 (ND4)
Additional effect: Adds a natural blue tone to cloudy or whitish skies, approximately equivalent to an LBB5 effect