When Canon finally opened its lens mount to third parties, Sigma was the first to deliver, and I've been testing the 16mm ...

First released for Sony E-mount, the Tokina atx-m 11-18mm F2.8 will soon be available for Fujifilm X-mount users.

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

Cosina still managed to include a filter thread, making the lens compatible with 34mm filters. It also comes with a dedicated ...

Nikon’s latest lens combines cinematic quality with the most commonly used focal lengths in a single versatile lens.

With excellent optics and a fully internal zoom design, this lens is well-suited for lunar and solar photography.

l the length of the coil and i the current". But I can tell you that for the first time ever, Focal's Tuned Mass Damper (TMD) technology has been integrated to the high-frequency driver.

Abstract: This article used far-field light source to investigate the focal length of the short focal length, multifocal metalens. The feasibility of the scheme was ...