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New Sigma patent describes 12mm f/2.8, 14mm f/2 and 14mm f/2.8 lenses for L/E mounts

Oct 20, 2020 by John Aldred 1 Comment

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A new patent from Sigma, spotted by the folks at Hi Lows Note, describes three new full-frame lenses designed for mirrorless camera systems – the Leica L and Sony E mount systems. The lenses described by the patent are a 14mm f/2, a 14mm f/2.8 and a rather intriguing 12mm f/2.8.

There is currently a Sigma 14mm f/1.8 DG HSM Art series lens available for both Leica L and Sony E mounts, however, it’s essentially their DSLR lens with an extended barrel to fix the flange distance. The patent suggests a new replacement model could be imminent!

Design 1 – 12mm f/2.8

  • Focal length: 12.40 mm
  • F number: 2.93
  • Angle of view: 122.09
  • Image height: 21.63 mm
  • Lens length: 138.00 mm
  • Back focus: 20.6500 mm

Design 2 – 14mm f/2.0

  • Focal length: 14.48 mm
  • F number: 2.07
  • Angle of view: 114.25
  • Image height: 21.63 mm
  • Lens length: 136.00 mm
  • Back focus: 20.5832 mm

Design 3 – 14mm f/2.8

  • Focal length: 14.48 mm
  • F number: 2.91
  • Angle of view: 114.26
  • Image height: 21.63 mm
  • Lens length: 120.00 mm
  • Back focus: 20.4000 mm

It’s not much of a surprise that Sigma is working on a mirrorless-specific version of its popular ultra-wide Art series lens, as they’ve been slowly going through their catalogue and making new versions designed for Leica L and Sony E mounts for a while now.

But what’s interesting is that while Sony & Panasonic/Leica/Sigma shooters might lose a little on the aperture over the current f/1.8 model, we might see a wider 12mm field of view.

As always, this is just a patent. So, there’s no word on when we might actually see a new lens being released, nor that if we do, it will use any of these three designs. Sigma might still have another trick or two up its sleeve to widen that aperture back up a little to match the f/1.8 of the existing lens.

[via Hi Lows Note]

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Filed Under: news Tagged With: 12mm f/2.8, 14mm f/2, 14mm f/2.8, e-mount, L Mount, patent, sigma

About John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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