Tamron’s Developing Smallest E-Mount Telephoto Zoom for Full-Frame Mirrorless

Tamron’s Developing Smallest E-Mount Telephoto Zoom for Full-Frame Mirrorless

Tamron 70–300mm f/4.5–6.3 Di III RXD


Commack, NY—Tamron is developing an E-mount telephoto zoom lens for Sony full-frame mirrorless cameras. The company has scheduled the Tamron 70–300mm f/4.5–6.3 Di III RXD (model A047) zoom lens to launch in fall 2020.

While Tamron has manufactured many telephoto zoom lenses that extend to 300mm for DSLR cameras, this new 70–300mm f/4.5–6.3 is the first model it has designed for full-frame mirrorless cameras. Moreover, created with the concept of bringing the joy of easy telephoto shooting to photographers everywhere, Tamron announced “it’s the world’s smallest and lightest 70–300mm zoom lens.” The lens measures 5.8 inches and weighs in at 19.2 ounces. It addition, has a maximum diameter of 77mm.

e-mount telephoto zoom Tamron-70-300mm-f4.5-6.3-Di-III-RXD-vertical
Tamron 70–300mm f/4.5–6.3 Di III RXD
Smallest Telephoto Zoom for E-mount Full-Frame Mirrorless

What’s more, the new compact E-mount lens features moisture-resistant construction for greater protection when shooting outdoors. Conveniently, the lens also shares the 67mm filter diameter common to all members of Tamron’s lens series for full-frame mirrorless cameras.

Furthermore, Tamron engineered the lens to take full advantage of in-camera features; this includes Sony’s Fast Hybrid AF and Eye AF technologies.

“The 70–300mm f/4.5–6.3 Di III RXD is a highly practical lens that makes the excitement of telephoto shooting easier than ever before across a diverse range of shooting styles; including landscapes, sports and other athletic events, wildlife, portraits and more,” the company noted. “The world’s smallest and lightest size brings you the joy of easy telephoto shooting.”

The lens also boasts optical performance with high image quality and aberration correction. Moreover, Tamron’s RXD stepping motor unit powers the lens’s AF drive system; subsequently, it provides high-speed, high-precision and quiet operation.


Tamron will mark the 70th anniversary of its founding on November 1, 2020. In 1950, its forerunner, Taisei Optical Equipment Manufacturing, was established on the basis of the founder’s belief in the potential of light. Moreover, the company began with 13 employees polishing lenses for cameras and binoculars. Since then, it has pursued optical technology research and technological innovation to progress to the development and design of lenses and other components. Tamron-70-anniversary-logo

What’s more it has grown into a global manufacturer with approximately 5,000 employees conducting development, manufacturing and sales. Today it offers interchangeable lenses for 35mm/digital SLR cameras; interchangeable lenses for non-reflex type cameras; camcorder lenses; digital still camera lenses; as well as drone lenses. It also produces optical device units; surveillance camera lenses; FA as well as machine vision lenses; automotive camera lenses; camera modules and test plates.

“We hereby extend our heartfelt appreciation to our customers for your support and patronage that has enabled Tamron to run our business for such a long time,” the company announced.

“We will continue to deliver the value of light in a way that is unique to Tamron; to provide excitement and reassurance with a view to further contributing and remaining vital to society for the next 10 years and beyond, towards our 100th anniversary.”

For activities throughout the year that are centered around this milestone and to read Tamron’s story, visit https://tamron.com/70th/.