Tag Archives: Sigma

Sigma 20mm f/1.4 and 23mm f/1.4 Patents Found

overview [Publication number] P2024035865 [Release date] 2024-03-15 [Name of the invention] Large aperture ratio optical system [Application date] 2022-09-05 [Applicant] [Identification number] 000131326 [Name] Sigma Co., Ltd. [Problem] To realize a large aperture ratio optical system that uses an inner focus method while reducing the weight of a focus lens. [Background Art] [0002] In recent […]

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Sigma 56mm F1.4 DC DN | Contemporary Shortages Resolved, but Sigma 18-50mm F2.8 DC DN | Contemporary Still Limited

The Sigma 18-50mm F2.8 DC DN | Contemporary and 56mm F1.4 DC DN | Contemporary announced shortages at the end of last year. Today Sigma announced that they have resolved the shortages with the Sigma 56mm F1.4 DC DN | Contemporary, but the Sigma 18-50mm F2.8 DC DN | Contemporary is still impacted. Information regarding […]

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Sigma 14mm f/1.4, 14mm f/1.8, 12mm f/1.4, 10mm f/1.4 APS-C Patent Applications Found

Sigma has filed some patents for some interesting APS-C lenses which you can check out below: Overview [Publication number] P2024011096 [Release date] 2024-01-25 [Name of the invention] Imaging optical system [Application date] 2022-07-14 [Applicant] [Identification number] 000131326 [Name] Sigma Co., Ltd. [Problem] Suitable for mirrorless digital cameras and video lenses, with the refractive power of […]

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Sigma 50-135mm f/2.8 DC DN Patent Found

Sigma 18-50mm f/2.8 DC DN Contemporary: B&H Photo / Amazon / Adorama A Sigma 50-135mm F2.8 DC DN patent was found by asobinet and while most patents do not become lenses this could be a useful 3rd party 70-200mm full frame equivalent lens to compliment the popular Sigma 18-50mm f/2.8 DC DN Contemporary. overview [Publication number] P2023179307 [Release date] […]

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Sigma 18-50mm F2.8 DC DN | Contemporary and 56mm F1.4 DC DN | Contemporary Shortages

This isn’t the first time that Sigma has been unable to keep up with demand for the Sigma 18-50mm F2.8 DC DN | Contemporary, but I am surprised to see the SIGMA 56mm F1.4 DC DN | Contemporary is also in short supply. Maybe users prefer Sigma’s new 56mm lens to Fujifilm’s since Fujifilm took […]

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Sigma 10-18mm f/2.8 DC DN Contemporary Orders Started Early

The Sigma 10-18mm f/2.8 DC DN Contemporary has been listed early on B&H Photo it was expected on October 26th, but that could be the shipment date. This is the world’s smallest and lightest F2.8 zoom lens designed for APS-C format mirrorless systems at just 2.8 x 2.4 inches (72.2 x 62mm) and 9.2 ounces (260g)*. The lens covers […]

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