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 ...

The Fotga Adjustable Infrared Filter can cut more or less visible light so you can dial in the exact IR effect you want – but is it any good?

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 ...

Moment, a company that’s well-known for its smartphone and drone accessories, has announced a first: a lineup of filters for full-blown mirrorless and DSLR camera lenses. “We’ve shot with a lot of ...

Variable fractional delay (VFD) filter design has become increasingly significant in digital signal processing, offering the flexibility to delay signals by non-integer amounts. This technology is ...

Shooting with a ND filter on your lens is like giving your camera a pair of sunglasses—it cuts light without changing the color balance so you can shoot longer exposures with wider apertures in bright ...

The LR2 line reactor series adds seven new frame sizes to match all GS, DURApulse, and WEG drives. The LR2 Series can also be used with a variety of other variable frequency drives (VFD) ...

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).

Variable NDs can tend to vary wildly in quality. A new set of variable NDs from Moment are a set of filters that aims to ensure the highest quality at a what turns out to be a very sensible price ...