- Patent Publication No. 2010-237455
- Release date 2010/10/21
- Filing date 2009/03/31
- Example 6
- Focal length f = 24.90 – 102.02mm
- Fno = 3.62 – 5.82
- Angle of 81.96 – 23.94 °
- Image Circle 43.28mm
- Total lens length 119.84 – 151.84mm
- BackFocus 38.50 – 51.35mm
- An aspheric surface
- Patent Technology
- Pojitiburidotaipu zoom
- Zoom a positive polarity
- Chromatic aberration, spherical aberration, coma aberration correction
- Refractive index and placement optimization
- Moving the second lensInnerfocusing equation
- Zooming
- All the lens moves
- Miniaturization
It looks like a cheap zoom for full frame. 5D3 low end kit lens?
[source]
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