Panasonic filed a patent (201247813) in Japan for a 12-60mm f/4.5-5.6 Micro Four Thirds lens:
- Patent release date: March 8th, 2012
- Patent filed on: August 24th, 2010
- Focal length: 58.1999-12.3599mm
- Aperture: 4.63557-5.76853
- Angle of view: 10.1280-4.3446 deg.
- Zoom ratio: 4.70875
- Lens design: 11 elements in 8 groups
- 1 ED glass element
- 5 aspherical elements
- Optical Image Stabilizer
- Internal focusing/zooming
Patent 201253260 is for a 150mm f/2.8 Macro lens by Olympus. Several different lens designs were described - for Four Thirds and Micro Four Thirds cameras:
- Patent release date: March 15, 2012
- Patent filed on: September 31, 2010
- Focal length: 150.11mm
- Aperture: 2.83 - 1.85 - 1.30
- Lens length: 178.64mm
- Lens design: 15 elements of 12 groups
- 3 ED glass elements
