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 ...

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 ...

I took the Irix Edge Light Pollution Filter on a night shoot to capture astro and low-light city shots. Here's how I got ...

Ice HB760 infrared filters give contrast-rich B&W shots on a super-tight budget, and offers a low-cost, risk-free way to try ...

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 ...

State-space digital filters constitute a versatile class of algorithms used to process signals by modelling dynamic systems through state variables. Their representation encompasses both the system’s ...

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 ...