Tim Coleman and the AP team guide you through the best lenses for astrophotography, with options for full-frame, APS-C and Micro Four Thirds. The post Best lenses for astrophotography – galactic glass ...

Abstract: In telecommunications (5G/6G) lenses can be used to manipulate the electric field emitted by an antenna. In this paper different permittivity lenses were studied with 3×3 dipole array acting ...

Joshua Waller and the AP team pick the best cameras for landscape photography right now, including DSLRs, mirrorless and medium format. The post Best cameras for landscape photography in 2026 appeared ...

Abstract: The fact that VCO-ADCs produce noise-shaped quantization noise suggests that a link between frequency modulation and Sigma-Delta modulation should exist. The connection between a VCO-ADC and ...

Dipartimento di Scienze del Farmaco e della Salute, Università degli Studi di Catania, Viale Andrea Doria 6, 95125 Catania, Italy ...

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Apple's rumored new variable aperture camera system for this year's iPhone 18 Pro models has reached the sampling stage, according to a new claim from a Chinese leaker. Posting on Weibo today, the ...

The incident occurred in the southern Philippines in the early hours of Monday, Jan. 26 A passenger ferry in the Philippines, which is also used as a cargo ship and was carrying 332 passengers and 27 ...

Search crews have rescued 317 people on board the MV Trisha Kerstin 3 At least 18 people have died after a ferry carrying more than 350 passengers and crew members onboard sank in the waters off ...

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It's a telephoto prime with a built-in teleconverter, letting photographers switch between two focal lengths in seconds. Here's how it works and what we know When you purchase through links on our ...