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Old Jan 8, 2010, 1:17 PM   #1
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Default Lens Patents

Canon made following patents.

EF300/F4 IS II with plastic lens.

EF 300 f/4L IS II
This would be a welcomed lens by many.
EF70-210/F4 IS II with plastic lens

EF 70-200 f/4L IS II
Not sure this lens needs an update yet.
EF300/F2.8 DO IS and EF 400/F4 DO IS with new double DO and IS

EF 300 f/2.8DO IS
A lot of DO patents popping up. A lot of people ask for smaller and lighter lenses.
EF 15-24/F3.5-4.5 Fish eye zoom (not EF-S)

EF 15-24 f/3.5-4.5 Fisheye
I think this would be a great fisheye solution. It wouldn’t cost a lot at first sight.

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