Nearly three decades ago, a handful of employees left their jobs at Omega Optical and founded Chroma Technology in Vermont. Since then, the company, which is entirely owned by its roughly 150 ...
LEE Filters maintains its premium reputation with a hand-dyed optical resin GND system. Unlike the glass used in their famous ...
Marumi's amazing Magnetic Graduated Neutral Density use science, rather than slots ...
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Oil Filter Testing

The sizes highlighted in green approximate the typical 4 to 40µm range of a filter test conducted per ISO 4548-12. A system can be calibrated to report additional efficiencies for the large particles, ...