Tamron has recently filed a patent application in Japan (P2026105742) for an interesting new lens design: a 50-130mm f/2.8 zoom lens. What makes this patent particularly notable is that it outlines an inner zoom optical system.
Key Patent Details (P2026105742):
Example 1 Specifications:
Analysis:
This design looks like a slightly longer alternative to the existing Tamron 35-100mm f/2.8 Di III VXD. However, the crucial difference is the zoom mechanism. The 35-100mm extends when zoomed, whereas this 50-130mm patent describes an internal zooming mechanism.
An internal zoom design is highly desirable for several reasons. It means the physical length of the lens barrel remains constant regardless of the focal length. This design choice often results in better weather sealing, reducing the likelihood of dust and moisture ingress compared to extending barrel designs. Furthermore, an internal zoom maintains a consistent center of gravity, which is a significant advantage when balancing the camera on a gimbal for video work.
While a 50-130mm f/2.8 would directly compete with Tamron’s own 35-100mm, the addition of an internal zoom could make it an appealing option for videographers and those who prioritize robust weather resistance.
As always with patents, there’s no guarantee this specific design will ever make it to market. However, it does provide an interesting glimpse into what Tamron is currently exploring in their R&D department.
Would you prefer the internal zoom of a 50-130mm or the slightly wider range of the 35-100mm? Let us know in the comments!
Tamron lenses can be found on B&H Photo and Amazon
Follow SonyAddict on Facebook, Twitter, Instagram, and YouTube
Plus our owners’ groups
Sony a1 Owners Group
Sony a9 Owners Group
Sony a7 Owners Group
via j-platpat