Overall the lens is usable through its entire focal length, when you keep a few large aperture values in mind that you might want to avoid because of noticeable corner blur. The purple fringing can be quite disturbing in high-contrast photos and it cost quite an effort to alleviate the effect in Photoshop. However, what makes this lens still very attractive is its low weight and relatively small dimensions, making it a good choice for travellers. Given the very low price of this lens, the image quality is actually quite acceptable. being a telephoto lens and also having 9 aperture blades helps a lot and this lens produces pleasantly

Autofocus: All lenses in this comparison offer autofocus with built-in focus drive. Manual-focus override is by simply turning the dedicated focus ring. On the Tamron 70-300 the focus ring turns the way Nikon users are used to and it has the non-linear gearing which most lenses for mirrorless cameras offer. But although the lens has a USB-C port to connect via computer to Tamron’s lens Utility (TLU) you cannot switch between variable or linear gearing nor can the direction of the ring be reversed – as you can do with the Z-Nikkor 100-400. Focus on the F-Nikkor 70-300 works differently as it has a direct linear mechanical coupling between the focus ring and the focus action. [+]

Our verdict...

Unfortunately, the new lens design no longer offers the 0.5x magnification of the previous design. The new lens offers an adequate 0.25x magnification at 300mm, with a minimum focusing distance of around five feet. Above: Nikon Z 100-400mm f4.5-5.6 VR S coverage on a full-frame camera at 100mm (left) and 400mm (right) The Tamron 70-300mm F4.5-6.3 Di III RXD features a high-speed RXD (Rapid eXtra-silent stepping Drive) motor unit that allows virtually silent auto-focusing, making it well-suited to video use.

Pretty leisurely focus speed: you can attempt some action shots with it, but be prepared for (very) low hit rate. If you've got sufficient light, and its laterally moving, you're be better of in manual focus for this type of thing. The Tamron has modestly less flare, less barrel distortion at 70mm and modestly less pincushion distortion at 300mm. As usual, a low percentage of sharp images can be captured at even longer exposure durations - as low as 1/10 at 300mm.

The lightweight construction is a bonus from a handling point of view, especially for long periods of handheld shooting and simply for carrying the lens around. The electronically coupled manual focus ring and mechanical zoom ring both operate with smooth efficiency and, as usual for this class of lens, the inner barrel extends at longer zoom settings. With fully internal focusing, however, the front element and filter ring don’t rotate, which is another handling advantage. That’s really all we can say about handling, as there are no other switches or control rings to play with apart from the zoom and focus rings. Performance

Bokeh is a word used for the out-of-focus areas of a photograph, and is usually described in qualitative terms, such as smooth / creamy / harsh etc.

Tamron 70-300mm f/4.5-6.3 Di III RXD Photos of Equipment

Spend a little more and get something better. Even if the alternative doesn't go all the way to 300mm. Also, the process for engaging and disengaging the macro function is fiddly and needs some practice to be used comfortably.