Patent News: Tamron 35mm F1.4 Lens patent surfaced over the web, take a look at the details below.
Description and self-interpretation of the patent literature
- Patent Publication No. 2013-83783
- Publication date 2013.5.9
- Filing date 2011.10.7
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Example Focal length Fno. MOD Lens constitution One 35.25 1.80 400.000 8 group nine Two 32.17 1.80 600.000 8 group nine Three 33.651 1.818 600.000 10 sheets in 9 groups Four 35.62 1.34 400.000 10 sheets in 9 groups Five 36.74 1.49 400.000 10 sheets in 9 groups Maximum image height 14.20mm
- Gauss type
- Bright
- For feeding whole, AF is unfavorable
- Sagittal aberration occurs
- Tamron patents
- The object side of the diaphragm, and place the meniscus lens having a concave surface facing the object side
- and a lens configuration of the triplet considerably around the aperture
- Sagittal aberration correction
- Place a negative lens having a concave surface facing the image side
- Angle of view of the standard lens equivalent
- Large-diameter
- Inner focus
- The object side of the diaphragm, and place the meniscus lens having a concave surface facing the object side
source-egami