The 15mm F1.4 DC | Contemporary lens is the newest addition to Sigma's lineup of fast-aperture prime lenses for crop sensor mirrorless cameras, and is the second such lens to feature a dedicated ...

This can have a direct affect on your exposure if the aperture is too large or too small. That is if all else is equal, and you’re not adjusting your ISO and/or Shutter Speed. Let’s keep it simple and ...

A new Microelectromechanical system (MEMS) grating modulator has been developed, offering significant advancements in optical efficiency and scalability for communication systems. By integrating a ...

When you use DPReview links to buy products, the site may earn a commission. Sigma has announced the 17-40mm F1.8 DC Art, a super-fast standard zoom for APS-C. It will be available in L, E, X and RF ...

The Sigma 17-40mm F1.8 DC has a limited zoom range and some clear optical compromises. But even so, it’s a uniquely useful lens for APS-C users, thanks to its ultra-large aperture. The Sigma 17-40mm ...

The Simons Observatory (SO), a most advanced network of telescopes aimed at mapping the Cosmic Microwave Background (CMB) with unprecedented precision, has reached a major milestone: the Large ...

Rajesh started following the latest happenings in the world of Android around the release of the Nexus One and Samsung Galaxy S. After flashing custom ROMs and kernels on his beloved Galaxy S, he ...

(Nanowerk News) Alongside advances in artificial intelligence and widespread availability of digital content, demand for augmented / virtual reality (AR / VR) near-eye displays has surged. There is ...

PI, a global leader in precision motion control and air bearing motion systems, offers the A-688 rotary stage, an advanced motorized, air-bearing based rotation stage, engineered for nanometer-scale ...