LEE Filters maintains its premium reputation with a hand-dyed optical resin GND system. Unlike the glass used in their famous ...

Digital signal processors (DSPs) continue to receive a great deal of attention in new product design. For example, digital filter design reflects the importance of understanding and using this ...

Marumi is also known for its quick magnetic filter system, and the range of graduated ND filters I got hold of for testing all belong to this magnetic system that works with the Marumi M100 filter ...

Editor’s note: In this Design Idea (DI), contributor Bonicatto designs a digital filter system (DFS). This is a benchtop filtering system that can apply various filter types to an incoming signal. The ...

Clear filters are a valuable tool for photographers working in harsh environments and are a wise addition to any photographer's kit. Positioned in front of the lens, they provide an extra layer of ...

Know how to design an analog filter but haven't yet tried a digital filter? In this installment of Step-by-Step Design, Microchip Senior Applications Engineer, Rishi Vasuki, shows you how to create a ...

In part 1 of this pair of articles, we ran SPICE noise simulations on a simple second order lowpass filter. We saw that there is something fundamental about the ‘hold’ that the filter’s capacitor ...