Sigma 15-24mm f/1.8, 16-28mm f/1.8, and 18-30mm f/1.8 Patents Found



Digicame-info found some interesting wide-angle Sigma zoom lens patents that are f/1.8. The Sigma 15-24mm f/1.8, 16-28mm f/1.8, and 18-30mm f/1.8 could all be useful zooms, but they will likely be very expensive given their fast apeture.

IP Force

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