A new Patent was found for a Tamron 28-70mm f/2 zoom lens. Previously, there was a Tamron 28-70mm f/2 patent found here, but this one is a new one that is slightly different with a more refined and compact design, which you can check out below with a brief comparison between the two patents: Tamron’s … Continue reading New Tamron 28-70mm f/2 Patent Found With a More Compact and Refined Design