優點:
1.Very Sharp, Nice Contrast
2. Sharpest f-stop from F5.6
3. F2.8 also brilliant
4.For the money and quality build it's a buy to be had .
5. Given the vagaries of the autofocus, the focus limit switch is a welcome addition.
缺點:
1. No Internal Focus
2. Noisy
3. The autofocus also seems as slow and imprecise as anything from 20 years ago.
4. For sharpness, the Sony was no better than the Tamron 90Macro, yet it costs more .
評價:
Optically, it performed well throughout the aperture range, providing high levels of detail and contrast. Just remind yourself to stay away from the big holes and start at f 5.6, work up or down.