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New Supertelephoto patents found
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New Supertelephoto patents found

Thanks to Keith at northlight for finding these supertelephoto patents in the US patent office.

These patents are intriguing as most don't include IS.  Even though it's common for patents for element design that don't necessarily include IS elements, it's very rare for a lens patent not to do so because the IS elements are important to the overall characteristics of the lens.  Not all patent applications end up as lenses, at times patents are simply introduced from a defensive posture as well.

Could Canon be considering SuperTelephotos without IS? Seems doubtful considering that IS encorporation these days isn't an expensive process.

US Patent Applications 


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How to view Japan Patent applications.

Unfortunately, there's no direct way of linking to the patent application (sad!) however, this is the easiest process to view a japan patent or application.

  1. Go to the Japan Patent Office search page.
  2. If it's a patent application (they are usually in the format of Year-Number ie: 2017-011300) then type the patent application number into the second field down from the top where it says publication of patent application. 
  3. Click on search.
  4. Then click on the patent application number link, and there's the patent application!

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