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A strange patent for an EF-S 18-100mm f/3.5-5.6 IS optical formula has appeared. I don’t imagine this patent is for a product we’re actually going to see, just something not that obvious in the design.
Patent Publication No. 2016-1224 (Google Translated)
- Published 2016.1.7
- Filing date 2014.6.11
- Focal length 18.59 47.22 94.99
- F-number 3.60 4.92 5.88
- Half angle of view (degrees) 36.31 16.14 8.18
- Image height 13.66 13.66 13.66
- The total lens length 137.78 158.04 178.30
- BF 35.39 52.79 64.61
Looking at the length of the lens, this doesn’t appear to be a compact design for a special DSLR either. We have seen patents for zoom lenses in the past that just seem to randomly end at 100mm.