Square Filter for NiSi Cameras Graduated Neutral Density GND8 Reverse Nano Grad ND 100 mmX150mm for Light Intensity Adjustment 0.9 [item]

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- High resolution: HD optical glass H-K9L is used, and both sides are ultra-precision polished to maintain the flatness of the filter. The resin and adhesive layer shrink and deform due to temperature changes, affecting flatness. Less likely to cause color cast: Proprietary technology uses gradual coating to uniformly transmit light from ultraviolet to near-infrared rays. Uneven transmittance of visible light causes color cast. Resin products fade over time, and adhesive products tend to fall off easily, so we do not recommend them. Anti-Flare: Using a graded coating on both sides of the filter avoids the high reflections of metallic aluminum and loam coatings. It is also highly maintainable and easy to clean. The border between light and dark gradually becomes brighter, creating a gradation that naturally connects the border, resulting in a natural-looking finish. NiSi Square Inverted Half Nano GND (8) 0.9 Optical Glass › See more GND Filter A GND filter is a half ND filter, and in English it is called Graduated Neutral Density Filters. The human eye adapts to environments with large differences in brightness and is able to clearly perceive them, but camera elements have a narrow dynamic range, so if the difference in brightness of the subject is too large, it can cause overexposure or underexposure. By using a GND filter, you can attenuate bright areas and adjust the overall exposure balance without losing the gradation of the subject. There are three types of GND filters that are commonly used: soft type, hard type, and (reverse GND). The world's first square nano-coated half ND filter uses environmentally friendly HD optical glass "H-K9L". To prevent distortion, HD optical glass "H-K9L" is annealed to eliminate glass stress. Additionally, by using optical polishing technology, the optical parallelism of the glass surface is improved, ensuring high resolution. By applying ND optical coating on both sides, it is possible to uniformly transmit visible light to near-infrared light. dielectric coating This process removes static electricity from the glass surface and makes it difficult for dust to adhere to it, and it also has strong acid resistance to organic solvents and can prevent color fading over a long period of time. When choosing, consider whether the resolution is high, whether there is little color cast, and whether flare occurs. For example, there are five types of soft types: resin dyed type, sandwich type, glass/ND gray glass adhesive type, one side coating type, and NiSi nanocrystal coating on both sides.