Like other companies, Sigma has specific acronyms to identify whether a lens is designed for full-frame or APS-C cameras. DG ...

An in-depth review of the SIRUI 24mm lens and its impressive footage. Culture Quest is your front-row seat to everything pop ...

Abstract: Photonic nanojet (PNJ) is a highly focused light beam generated on the shadow side surface of a plane-wave-illuminated dielectric microcylinder, microsphere or hemisphere lens. Compound ...

Background Mutations in the L/M cone opsin gene array cause abnormally high perceived retinal contrast and the development of myopia. Environmental factors may also lead to high visual contrast and ...

SIRUI launches the ASTRA Series, a set of lightweight 1.33x full-frame autofocus anamorphic lenses with a constant T1.8 ...

In addition to discussing the DJI Neo 2, the podcast also delves into the newly launched SIRUI Astra lens series. Johnnie provides an in-depth look at these lenses, highlighting their potential to ...

Find the best Black Friday 2025 deals on cameras, lighting, editing gear, and accessories for filmmakers. Updated daily ...

Shooting with a Nikon Z9 and a $16,000 Z lens, this young photographer beautifully showcased a hornbill mid-flight with ...

Aim To determine if ‘Defocus Incorporated Multiple Segments’ (DIMS) spectacle lenses slow childhood myopia progression. Methods A 2-year double-masked randomised controlled trial was carried out in ...

Paris (AFP) – English duo Angel Gomes and Mason Greenwood scored as Marseille took over top spot in Ligue 1 from Paris Saint-Germain on Saturday with a 3-0 home win over Brest. Gomes fired Marseille ...

A site for working professionals in the TV & Film industry ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this problem ...