Tame unwanted reflections with Fineshut SP, an extraordinarily thin light-absorbing polyurethane foam sheet designed for optical precision. At roughly 0.22 mm thick, this specialized material delivers remarkable light-absorbing performance without adding bulk.
Japan has long set the global standard for optical engineering, where microscopic details make a massive difference in image quality. Fineshut SP built its strong reputation inside the mirror boxes of industry-leading single-lens reflex cameras, protecting shots from internal glare. It has a long track record of high performance and reliability that holds up even in mass production, and it is REACH and RoHS 2.0 compliant, meeting strict international safety and environmental standards.
Whether you are restoring classic camera equipment, tinkering with custom optical builds, or tackling high-precision crafts, this material brings professional-grade light control right to your workbench.
Fineshut SP is a light-absorbing polyurethane foam sheet, approximately 0.22 mm thick. Originally developed by Koyo Kogyo Co., it offers excellent optical properties, proven mass-production reliability, and REACH and RoHS 2.0 compliance. Primarily used to prevent stray light in the mirror boxes of single-lens reflex cameras.
