The addition of an 85mm F1.2 will mean there are super-fast portrait primes for all the major full-frame systems.

The new Sigma 15mm f/1.4 DC Contemporary is the lightest lens in the company's Contemporary series ...

The Sigma 12mm f/1.4 DC | C is the latest, and widest, lens to join Sigma’s comprehensive list of primes with a fast f/1.4 maximum aperture, complimenting the 16mm, 23mm, 30mm and 56mm f/1.4 primes in ...

Order does not affect plans to restart production, firm says Bank of America downgraded Sigma shares, causing 15% drop Sigma still fighting former co-CEO in court over mining rights RIO DE JANEIRO, ...

A versatile, professional-grade lens with superior light-gathering capability, though there's a compromise to be made in terms of weight. Chromatic aberration and coma are significantly corrected. Why ...

Fears of a tighter lithium supply from China are driving up prices. Sigma Lithium could greatly benefit as it adjusts sales volumes to capitalize on higher prices. The lithium stock is up only about ...

DENVER (KDVR) — The University of Colorado Boulder said that one of its fraternities was suspended Thursday after receiving “credible reports” of hazing. The university said that it received a ...

Delta-sigma (ΔΣ) converters may sound complex, but at their core, they are all about precision. In this post, we will peel back the layers and uncover the fundamentals behind their elegant design. At ...

Ganfeng Lithium Group chairman Li Liangbin believes global lithium demand will grow 30% to 40% in in 2026. Lithium prices could more than double. Sigma Lithium is on the cusp of profitability already, ...

The annual Sigma Holiday House will take place Nov. 22 at the Fond du Lac County Fairgrounds Expo Building. This juried artisan fair features a variety of vendors selling handmade goods, decorations ...

Sigma Lithium is rated a buy due to its strong focus on cost control and cash flow management amid capacity expansion. SGML benefits from improved lithium prices and operational efficiencies, ...

Sigma Lithium is transitioning from a development story to an operating miner, showing consistent execution and cost control during the lowest point of the lithium cycle. Q2 2025 results confirmed ...