Links: In USA at Amazon, Adorama, BHphoto and FocusCamera. In EU at Fotokoch. CalumetDE, WexUK. ParkcamerasUK.
Marc Alhadeff from SonyAlphaBlog concluded:
The Tamron 28-200mm F2.8-F5.6 Di III RXD is a high quality superzoom that will suit all people who want to travel light with only one zoom while keeping high quality
It will be at ease without any issues on 24 and 42Mpix, it even supports the 61Mpix in the majority of the cases
Of course like all superzoom there are compromise:
F5.6 at 200mm which makes it less suited for low light focusing at the long end
7 apertures blades and bokeh with onion rings
Little degradation of performance at 200mm
Some flare sensitivity
But overall images are rendered vary naturally, with very good colors, very nice blurry background and very good to excellent sharpness at all focal lengths. AF is fast and accurate , price is reasonable and lens stay compact
Compared to the Sony FE 24-240mm F3.5-F6.3, it is night and day , the Sony version was just decent on 24Mpix but was not at all at ease on 42Mpix and AF was not very good
Highly recommended if you one one unique travel zoom
Pro’s
Very good to excellent sharpness in the centre from 28 to 135mm
Reasonable price (870 euros)
Small and light for a all in one zoom
Very fast and accurate AF
Very low CA
Very short minimum focusing distance (19cm @28mm – 80cm @200mm)
Moderate vignetting and distorsion but will be corrected with a Lightroom lens profile soon
Average
Build quality : quite good but feel a bit plastic
Resistance to flare
AF at 200mm in low light due to F5.6 aperture
Sharpness at 200mm
Con’s
Corners sharpness
Only starts at 28mm
Bokeh balls shows onion rings and the 7 blades of the aperture
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And this is Dustin Abbotts take on the new lens:
Links: In USA at Amazon, Adorama, BHphoto and FocusCamera. In EU at Fotokoch. CalumetDE, WexUK. ParkcamerasUK.