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Firmware Update

Sigma Patent - 14mm F1.2 and 35mm F1.2

Latest patent surfaced over the, that shows sigma is working on 14mm F1.2 and 35mm F1.2 Lens.

Patent Details
Specification and lens arrangement of embodiment 6
Focal length: 13.92 mm
F No.: 1.28
2ω: 81.14
Image height: 10.82 mm
Lens length; 105.02 mm

 

 

Specification and lens arrangement of embodiment 7
Focal length: 34.98 mm
F No.: 1.28
2ω: 33.12
Image height: 10.82 mm
Lens length; 110.14 mm

We have already published that Sigma is working on 12mm F1.4 MFT Lens and 8mm F1.8 lens for MFT

source

SIGMA Patent 12mm F1.4 MFT Lens

Sigma filed a patent of 12mm F1.4 for m4/3 lens.It’s a good news for M4/3 owners that Sigma is finally taking interest in M4/3 systems cameras. In Future we do expect ART series lenses dedicated for M4/3 system cameras.

Sigma MFT lens patent

Also take a look at the translated text from Sigma

FT san suggests that the embodiment 1 is same to “LEICA DG SUMMILUX 12mm / F1.4 ASPH” of Panasonic. That’s optical formula of both the lenses look exactly same.

Stay with us for LIVE camera rumors | See more Sigma Patents

source

Sigma 12mm M4/3 Lens Patent

Sigma patent 12mm F1.4 M4/3 lens patent surfaced over the web. From its focal length and aperture its look like they are planning to announce a new ART series for M4/3 mount. Take a look at the patent details below.

Patent details (Translated)
Subject distance: INF 40 times 200 mm
Focal length: 12.35 12.35 12.32
F number (F number): 1.47 1.48 1.50
full angle of view 2ω (Angle of view): 88.12 88.02 87.77
image height Y (image height): 10.82 10.82 10.82
total lens length (lens length): 86.00 86.00 86.00 eXAMPLE 1 embodiment 1] [ Aberrations at INF] [ Aberration chart at close range Aberrations at 200 mm]

We have also published Sigma Patent – 8mm F1.8 Fisheye For MFT System.

However, earlier Sigma have denied the rumors that Sigma is entering in M4/3 lens mount. But, its look like they have changed their mind.

Sigma Patent - 8mm F1.8 Fisheye For MFT System

Sigma new 8mm F1.8 Fisheye lens patent surfaced over web for M4/3 system cameras. Take a look at the details below

sigma-lens-image

Self-interpretation translated via gogle

Patent Publication No. 2016-184136
Published 2016.10.20
Filing date 2015.3.27
Example 7
INF 120mm
Focal length 7.90 7.60
F-number 1.82 1.83
Full angle of view 2ω 197.08 197.08
The image height Y 11.60 11.71

Sigma More Lens Patents

Patent - Sigma 70-200mm F2.8 Lens

Sigma 70-200mm lens image

Latest patent surfaced over the web suggest that Sigma is now working on a70-200mm F2.8 F2.8 Sports lens.

70-200mm Lens patent details

  • Published 2016.5.12
  • Filing date 2014.10.8
  • Zoom ratio 2.67
  • Focal length 72.41 118.50 193.38
  • F-number 2.92 2.92 2.92
  • Full angle of view 2ω 33.58 20.51 12.56
  • The image height Y 21.63 21.63 21.63
  • The total lens length 250.00 250.00 250.00

The filed on Nov 2014 so can now expect the announcement of the lens end if the year or may be on beginning of 2017. If Sigma announces such lens under a reasonable price tag with better quality Canon and Nikon 70-200mm sales graph will go down for sure.

source

Sigma Patent - 35mm F2 ART Lens for 4/3 System

SIgma-ART-35mm-lens-for-M43
According to the latest patent surfaced over the web, Sigma is working on 4/3 system based ART series prime lens, the lens will have 35mm focal length and F2 aperture.. the lens will also feature built in optical image stabilization.

Sigma already have 60mm f/2.8 DN Lens for Micro Four Thirds Mount Cameras , available at B&H and Amazon

Sigma Patents 17-55mm F2.8 OS Lens

Sigma-17-55mm-new-lens-imag
A new patent surfaced over the web that shows Sigma 17-55mm lens having a constant aperture range of F2.8 and built-in optical image stabilization, According to the website egami the built of the lens and its specification look more video oriented,  the to be announced 17-55mm F2.8 lens may become a standard lens for upcoming Canon and Nikon 4K / 8K  DSLRs.