Analog variable frequency filters require the use of variable passive components. The higher the slope of the filter, the greater the number of needed variable passive components. These elements are ...

However, even the best variable NDs aren't perfect. Their density range is somewhat limited, and if you get close to their ...

Benro’s NE1 Electronic Variable ND Filter Kit goes live on Indiegogo with early bird pricing. We break down features, Dye-LC ...

Without having other variable ND filters for comparison, we can’t make definitive comments on whether the Syrp filter is superior. But we can say that it provides a compact and versatile addition to a ...

Responding to the demands of cinematographers & lighting professionals worldwide, Tiffen has launched its new Variable Viewing Filter (VVF), incorporating Tiffen’s award-winning Variable ND filter, ...

Filters are used in many applications to remove unwanted frequency components from incoming signals, enhance incoming signals, or both. In portable and non-portable medical applications, for example, ...

Camera manufacturers are consistently working on making cameras capable of capturing more light than ever with fewer noise artifacts. Despite this, there are photographers all over the globe looking ...

Variable neutral density filters are very useful for photographers that like manual control in bright light. Instead of paying hundreds of dollars for one, though, you can make your own from just a ...

Across a range of applications, the two most common functions implemented in FPGA-based high-performance signal processing are finite impulse response (FIR) filters and fast Fourier transforms (FFTs).