Discover the yet-to-be-crowned Close-up Photographer of the Year and the incredible worlds revealed in astonishing detail ...

USM stands for Ultrasonic Autofocus Motor. These lenses offer manual focus override and fast, smooth and comparatively quiet ...

Harlowe (formerly Hobolite) has announced a brace of LED lighting solutions, the Harlowe Max Air 40 and the Harlowe Pro 300 Spectra, both evolutions of existing ranges. The Max Air 40 is priced at ...

One of the most popular ways to achieve a clean, modern look in product photography is through high-key lighting. Using a ...

Abstract: A phase-locked loop (PLL) utilizing a single ring oscillator-based integrator and background frequency calibration is presented. The in-band phase noise and power efficiency of the PLL are ...

This story originally published in the July 1906 issue of National Geographic magazine. See more digitized stories from our archives here. Looking back to that period, many years ago, when the finger ...

KeyTik is a Python program that uses AutoHotkey to handle many things, including a powerful key mapper and various macros such as clickers and more. It comes with comprehensive key support, such as ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...

Abstract: In this paper, a low profile and high sensitivity metamaterial microwave sensor for dielectric materials characterization is presented. The proposed sensor consists of one split ring ...