After announcing only the development, and after some leaked specs, Tamron 70-300mm f/4.5-6.3 Di III RXD is now finally here. It’s a telephoto zoom made for Sony full frame cameras, but it’s pretty compact for the lens of its range. It’s pretty cheap too, with the price tag of $549. So, let’s see what it brings to the table.
The new Tamron 70-300mm f/4.5-6.3 is designed for full-frame Sony E-mount mirrorless cameras. Of course, you can also use it with APS-C models and get a 105-450mm equivalent focal length range. It’s an autofocus lens with a RXD stepping motor. Tamron promises fast, precise, and quiet AF operation, and the lens should also get along well with Sony’s Fast Hybrid AF and Eye AF functions.
As I mentioned, the lens is pretty small and lightweight considering that it’s a 70-300mm zoom: it’s 5.8″ long with a maximum diameter of 3″, and it weighs 1.2 pound. It’s moisture-resistant, so you can use it in light rain.
Here are the full specs:
| Focal Length | 70 to 300mm |
| Maximum Aperture | f/4.5 to 6.3 |
| Minimum Aperture | f/22 |
| Lens Mount | Sony E |
| Format Compatibility | Full-Frame |
| Minimum Focus Distance | Not Specified by Manufacturer |
| Focus Type | Autofocus |
| Image Stabilization | No |
| Filter Size | 67 mm (Front) |
| Dimensions (ø x L) | 5.8 x 3.03" / 147.32 x 76.96 mm |
| Weight | 19.2 oz / 544 g |
The Tamron 70-300mm f/4.5-6.3 Di III RXD is ready for preorders, and as I mentioned, it costs $549. It should start shipping in late October.
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