NiSi Graduated Neutral Density GND8 Reverse Nano Grad ND Square Camera 100mm X for Light Control 0.9 Filter, 150mm, [Used]

---------------------------------------------------------------------- 【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 double-sided ultra-precision polishing ensures the filter's flatness. Temperature changes can cause the resin and adhesive layer to shrink and deform, affecting flatness. Less likely to develop color cast: Our proprietary gradual-drop coating technology allows for uniform transmission of light from ultraviolet to near-infrared. Uneven transmittance of visible light causes color cast. Resin products tend to fade over time, and adhesive products are not recommended as they tend to come off easily. Anti-flare: By using a gradual drop coating on both sides of the filter, the high reflection of metal aluminum coating or rhodium coating can be avoided. It is also easy to maintain and clean. The boundary between light and dark is gradually lightened by a gradation, so the boundary is naturally connected, resulting in a natural finish that is close to the actual appearance. NiSi Square Inverted Half Nano GND (8) 0.9 Optical Glass › See more GND Filters GND filters are half ND filters, also known as Graduated Neutral Density Filters. The human eye adapts to environments with large differences in brightness and can clearly distinguish between them. However, camera image sensors have a narrow dynamic range, so excessive differences in brightness can cause overexposure and underexposure. Using a GND filter reduces the brightness of bright areas and balances the overall exposure without losing the subject's tonal gradation. Commonly used GND filters come in three types: soft, hard, and (Reverse GND). The world's first rectangular 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. Optical polishing technology also improves the optical parallelism of the glass surface, ensuring high resolution. Double-sided ND optical coating allows uniform transmission of light from visible to near-infrared. Dielectric coating Coating removes static electricity from the glass surface, making it less susceptible to dust, while providing strong resistance to organic solvents and preventing color fading over the long term. When choosing a glass, consider high resolution, minimal color cast, and flare. For example, the soft type comes in five varieties: resin-dyed type, sandwich type, glass/ND gray glass adhesive type, single-sided coated type, and NiSi double-sided nanocrystal coated type.