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Forum: Pentax News and Rumors
06-03-2016, 06:58 AM
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i don't imagine there will be an English abstract for a patent which was just published. The more recent abstracts correspond to patents published on January 28th.
One has to browse the Japanese section to find it.
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Forum: Pentax News and Rumors
06-03-2016, 06:24 AM
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Forum: Pentax News and Rumors
06-03-2016, 05:33 AM
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Do not rely on websites such as egami as far as focal length and other specifications are concerned. They take them out of one of the several examples in the patent.
For instance the patent recently presented on the Internet as pertaining to a 100-300mm f/4 shows the optical formula of the D FA★ 70-200mm f/2.8: egami just chose the wrong embodiment.
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Forum: Pentax News and Rumors
06-01-2016, 06:29 AM
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像高, the Google-translation of which is 'image height', means the radius of the image circle when used in correlation with an optical formula.
21.64mm radius <==> 43.28mm diameter for the image circle, whilst the diagonal of a 24mm x 36mm rectangle is 43.27mm.
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