This is the Panasonic 150mm f/2.8 MFT lens patent.

Egami spotted a new Panasonic patent describing exactly the soon to be announced new Panasonic 150mm f/2.8 lens. The lens will be announced at Photokina in September. These are the specs

Description and self-interpretation of the patent literature

• Patent Publication No. 2014-38304
  • Publication date 2014.2.27
  • Filing date 2012.7.20
• Example 1
  • Focal length f = 146.2142-139.0971mm
  • Fno. 2.91065-2.92693
  • Half angle ω = 4.1995-3.5203 ​​°
  • Image height Y = 10.8150mm
  • Total length 132.5800mm

And here is a picture of the prototype shown last year: