Experience the nostalgic allure of vintage cinematography with the 4x4" Golden Sepia #2 Professional Glass Filter. This premium filter infuses your visuals with an old film look, enriched by a warm golden tone that evokes the timeless charm of early cinema. Crafted with meticulous attention to detail, each filter is diamond cut from crystal-clear, water-white optical glass, ensuring the highest level of clarity and quality.Schneider's commitment to excellence is evident in the precision with which these filters are ground and polished. Achieving a precise flatness and plane-parallelism, the filters guarantee an exact parallel relationship between the front and back surfaces. This precision is further affirmed by laser interferometer verification, ensuring that each filter meets the stringent standards required for professional use.The consistency of Schneider filters is unparalleled. Each filter undergoes rigorous testing with a densitometer to ensure uniform density and a spectrophotometer to confirm accurate light transmission. This level of consistency is critical for cinematographers who need to swap filters mid-shoot without experiencing any variation in color or effect. The exceptional purity, color saturation, and repeatability of these filters significantly reduce the need for lab color timing correction, streamlining the post-production process.Durability is a hallmark of Schneider filters, designed to withstand the most demanding conditions on set or on location. Many filters feature a specially formulated hard anti-reflective (AR) coating that resists flaking, peeling, and scratching. This proprietary coating also minimizes light loss and flare to less than 1% per surface, a stark contrast to untreated glass which typically suffers a light loss of 4% per surface. Schneider's screw-on filters boast precision brass mounting rings that are virtually jam-proof, while their unmounted laminated filters are safeguarded against delamination and edge chipping by the innovative Edge Seal. This unique sealing technique also mitigates edge reflection and edge flare.Dispelling the myth that filters should not be used with long lenses due to the critically short depth of field, Schneider filters demonstrate that high-quality glass and manufacturing can eliminate this concern. Unlike inferior glass or plastic-resin filters that can degrade image quality, Schneider filters maintain impeccable image integrity, even when used with the longest lenses. Photographers and cinematographers can trust in the superior craftsmanship of Schneider filters to enhance their vision without compromising on image quality. | Schneider | | 4x4" Golden Sepia # 2, Professional Glass Filter | Best Buy