Lens review
2009-08-25
Sony Carl Zeiss Vario-Sonnar T* DT 16-80 mm f/3.5-4.5
10. Autofocus
When working on A100, the lens focuses for about 1 second and does it with characteristic whirr. At 80 mm from infinity to close it often makes errors so the focusing can last even over 2 seconds. On A 700 the lens’s motor works more silently, we hear only quiet buzz. The autofocus works a bit quicker but it also tends to make errors at 80 mm.
You can’t complain about the accuracy of the autofocus motor while working on A100 – the 7% of error in the studio conditions is perhaps not outstanding but also not that bad.
We haven’t noticed any problems with backfocus or frontfocus.
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