High quality optical H-K9L glass construction ensures superior clarity and durability for your photography and optical applications. Available in multiple sizes 12.5mm, 25mm and 50x50mm, suitable for different devices and creative needs. The optical density range from 0.1 to 1.0 allows precise light control, ideal for reducing light intensity without affecting colour balance. Designed for a wide application wavelength range of 400-1100nm, making it suitable for different lighting conditions and environments. Each filter is carefully crafted, with a wavefront transmission error of λ/4@633nm and a dimensional tolerance of +0.0/-0.1mm for optimal performance.
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