Canon patent for EF 50 f/1.4 USM Patent Publication No. 2011-70032 Published 2011.4.7 Filled 2009.9.25 Specifications Focal Distance: 51.70 Fno:…
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Canon patent for EF 300 f/4L IS II Patent Publication No. 2011-70032 Published 2011.4.7 Filled 2009.9.25 Specifications Focal Distance: 294…
Canon patent for EF 24 f/2.8 USM Patent Publication No. 2011-70032 Published 2011.4.7 Filled 2009.9.25 Specifications Focal Distance: 24.48 Fno:…
Canon files patent for new DO lenses Patent publication 2009-198960 Published 03/09/2009 Filing date 2008/02/25 Example 1 Focal length f…
It’s coming, really! We posted the filed patent of a 24-70 f/2.8L II way back in October. However it has…
A patent for a super high performance APS-C lens has been issued. The lens is a 17mm equivalent on…
The First Canon Mirrorless Related Patent? This appears to be a lens adaptor. EF to something else? Egami compares it…
I know, I said “cool” and Tamron in the same sentence. It’s true though. Want to IS/VC your lenses? Just…
A patent for a 300 f/4L IS II has been filed in Japan. Remember, patents don’t always become real products.…
We’ve seen a 600 DO patents before, no lens yet. PR shows us a patent for a 600 f/5.6 DO…