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Lens Patents Everywhere

By Canon Rumors | December 9, 2009

Lots of patents, how many are real products?

Patent Number: 20090180199
EF 35-70 f/2.8 IS
EF 28-70 f/2.8 IS

I posted this a few days ago and removed it because I didn’t really understand it.

Patent Number: 20090201585
EF 600 f/4 DO
EF 70-300 f/4.5-5.6
EF 28-35 f/1.6-2.1

Patent Number: 20090284847
EF 14 f/2.8
EF 24 f/2.8
EF 300 f/4 IS
EF 400 f/2.8 IS

As always with patents, I really don’t speak their language and a lot can be lost in the translation. I’ll keep this posted and let you folks dissect them.

thanks [NL]


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