There are about as many types of glass filters as there are perhaps applications for them. Yet despite all the variety, one thing is clear: Sydor Optics offers exceptional manufacturing capabilities when it comes to custom optical filters. With the largest inventory of double-sided grinding and polishing machines in North America, Sydor Optics can precisely fabricate custom optical filters to meet your exact requirements, from basic prototyping to high-volume production—and every step in between. While color glass filters can be ordered directly from the original manufacturer, standard surface flatness and transmitted wavefront tolerances may not meet your precision requirements — that’s where Sydor Optics double-sided polishing process stands out. Sydor Optics has extensive experience manufacturing uncoated filter substrates and colored filter glass. For customers needing finished coated filters, the coating process is outsourced to the most experienced coating vendors in the industry. Common optical filters include neutral density, shortpass, longpass, bandpass, notch and edge with filter coatings suited for the infrared (IR), ultraviolet (UV) and visible (VIS) color spectrums. Sydor Optics is ITAR Registered and ISO 9001:2008 Certified.