Sigma patent: 14mm f/3.5 lens for APS-C mirrorless cameras

14mm f/3.5

It’s getting more and more interesting for mirrorless camera owners. Sigma filed a new patent for a 14mm f/3.5 lens for mirrorless cameras with APS-C sensors. According to the patent description this would be a zero-distortion lens, something we recently saw on a new Laowa lens.

  • Patent Publication No. 2016-139087
    • Published 2016.8.4
    • Filing date 2015.1.29
  • Example 1
    • INF 200mm
    • Focal length 13.98 13.28
    • F-number 3.53 3.54
    • Full angle of view 2ω 90.74 92.90
    • The image height Y 14.20 14.20
    • Overall length of the lens 89.25 89.25
    • BF 17.5750
    • Lens configuration 8 groups 10 sheets
    • 2 aspherical three sides
    • ED 1 ( sigma in ELD)
    • Fluorite 4 ( sigma in FLD)
  • Example 2
    • INF 200mm
    • Focal length 13.97 13.28
    • F-number 4.13 4.13
    • Full angle of view 2ω 90.90 92.68
    • The image height Y 14.20 14.20
    • Overall length of the lens 82.60 82.60
    • BF 17.6874
    • Lens configuration 8 groups 10 sheets
    • 2 aspherical three sides
    • ED 1 ( sigma in ELD)
    • Fluorite 4 ( sigma in FLD)
  • Sigma patents
    • FumakeTadashi
    • Inner focus (the second group)
[via Egami]

 

Amazon Lightning Deal: Samyang 14mm f/2.8 Ultra Wide Angle Lens – $270 (reg. $319)

Amazon Lightning Deal: Samyang 14mm F/2.8 Ultra Wide Angle Lens – $270 (reg. $319)

Amazon has the Samyang 14mm f/2.8 Ultra Wide Angle Lens as Lightning Deal on sale at $269.99. The deal ends at 1pm EST.

  • Ultra-wide angle of view on both full frame and APS-C cameras
  • Excellent construction and superior build quality for razor sharp images
  • Features built-in petal type hood
  • Minimum focusing distance of only 0.9 ft.
  • Super multi-layer coating to reduce flares and ghost images
  • Lens not Zoomable

Stormscapes2 – An Astonishing Time Lapse Video

The amazing video above was made by Nicolaus Wegner, and it took him 5 months to put it together. He says:

High plains storms are some of the most beautiful and wild in the world. I spent May – September 2014 photographing all types of severe weather in Wyoming, Montana, South Dakota, Nebraska, and Colorado. This time lapse project is a result of that effort. From rainbows to tornadoes, there is a little bit of everything in here.

To realise the time lapse video he used an EOS 5D Mark II and EOS 6D, and EF 16-35mm f/2.8L II USMEF 70-200 f/4L IS and Rokinon 14mm lenses.

Kudos!

Music: “Leader” by MODE

[via TwistedSifter]