Sigma has just filed a new lens patent for telephoto zoom lens: Sigma 70-200mm f/4 DG DN OS Sports lens for L-mount full frame mirrorless cameras.
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Sigma L-mount Lens Patents: 16mm f/2, 18mm f/1.8 & f/2, 20mm f/1.8, 24mm f/1.8, 28mm f/1.8, 34mm f/1.8
Sigma has filed a list new wide-angle prime L-mount lenses today. They are 16mm f/2 DG DN, 18mm f/1.8 DG DN, 18mm f/2 DG DN, 20mm f/1.8 DG DN, 24mm f/1.8 DG DN, 28mm f/1.8 DG DN, 34mm f/1.8 DG DN lenses. You can take a look at details of these L-mount lens patents:
New Sigma L-mount Patent: Sigma 50mm f/1.2, Sigma 40mm f/1.2
Japanese website Hi-Lows-Note has find new lens patent for Sigma L-mount full frame mirrorless lenses: Along with recently released Sigma 35mm f/1.2 DG DN Art Lens (B&H Photo Video/Adorama), Sigma also has patent for Sigma 50mm f/1.2 and Sigma 40mm f/1.2 L-mount lenses.
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