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:
