SonyAlphablog posted the worldwide first evaluation of the Tamron 18-300 for Sony. He concludes:
The Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD (749 euros) is a pleasing shock. Sure it’s heavy , sure it is vitally lengthy , sure the aperture is kind of small however picture high quality is there with superb sharpness , some very good coloration rendition and easy background blur when used at shut distance.
It’s a lot better than any of the quite a few 18-200mm accessible , than the Sony E 55-210mm F4.5-6.3 OSS. It’s merely the most effective all in zoom zoom for Sony E mount.
It is going to be superb for vacationers that need to take just one zoom with them and shoot from panorama, avenue, portrait to animals pictures
The zoom is provided with picture stabilisation which is an enormous plus for many Sony APSC cameras (besides A6500 and A6600 which have sensor stabilisation).
AF is fast and exact in good lightning circumstances however don’t besides miracle with an aperture of 6.3 at 300mm in low mild, ISO will climb very quick.
For video in case you do static plan it delivers superb outcomes however the zoom ring could be very stiff and you may’t get a easy zooming whereas filming
Really helpful for vacationers who need a high quality mega zoom