Tamron 28-55mm f/2.8, 24-45mm f/2.8, 20-40mm f/2.8 Patent Found



The development of the Tamron 20-40mm f/2.8 was announced here, and the first leaked image is here. Now asobinet has come across the patent, which you can see translated below:

Overview

Example 1

Example 2

Example 4

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Tamron 17-28mm f/2.8 Di III RXD FE:

B&H Photo /  Amazon / Adorama

Tamron 28-75mm f/2.8 Di III VXD G2 FE:

B&H Photo / Amazon / Adorama

Tamron 28-75mm f/2.8 Di III RXD FE:

Amazon

Tamron 35-150mm f/2-2.8 Di III VXD:

B&H Photo / Amazon / Adorama

Tamron 70-180mm f/2.8 Di III RXD FE:

B&H Photo / Amazon / Adorama

Tamron 28-200mm f/2.8-5.6 Di III RXD FE:

B&H Photo / Amazon / Adorama

Tamron 20mm F/2.8 Di III OSD M1:2(Model F050):

B&H Photo / Amazon / Adorama

Tamron 24mm F/2.8 Di III OSD M1:2(Model F051):

B&H Photo / Amazon / Adorama

Tamron 35mm F/2.8 Di III OSD M1:2(Model F053):

B&H Photo / Amazon / Adorama

via asobinet