Sony FE 28-70 mm f/2 GM
11. Summary
Pros:
- solid and weather-resistant barrel,
- sensational image quality in the frame centre, especially at the 50 mm focal length,
- very good image quality on the edge of the APS-C/DX sensor,
- good image quality on the edge of full frame,
- negligible longitudinal chromatic aberration,
- moderate lateral chromatic aberration,
- lack of any noticeable problems with spherical aberration,
- slight distortion on the APS-C sensor,
- low astigmatism,
- silent, quick, and accurate autofocus,
- low focus breathing,
- unique parameters.
Cons:
- high vignetting on full frame but only by f/2.0
Of course you have to remember that you deal here with a big and heavy zoom lens, although Sony tried their best to make it easier to handle and to use than the rival Canon device.
Still, if you wanted to get almost exactly the performance offered by the Sony you would have to buy as many as four primes. There is also another problem – no producer has 2/28, 2/35, 2/50, and 2/70 models in their line-up although it seems Sigma is the closest to that goal, offering you in their C line the following lenses. It's easy to add up their weight – it would amount to 1440 grams so over half a kilo more than the weight of the tested Sony model.
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The Sony FE 28-70 mm f/2 GM has another problem – a very high price. Its price tag reaches almost $2900 and is by $300 higher than in case of the Canon. What's more, if you add the prices of the four Sigma primes, mentioned earlier, you get a sum of about $2590, so slightly lower.
What to buy? I don't doubt that there will be supporters of both solutions. Those who prefer to remain inconspicuous will chose a small camera body with three or four interchangeable primes. Those who need an uncompromised solution in a form of a universal and fast workhorse will cry and pay for the expensive Sony. I think they won't regret their decision because the lens's optics is of very high quality. It certainly deserves our 'Editors' Choice' badge.
