- Relatively slow autofocus, clearly audible motor, but not annoying. Frequent miss, especially in low light and a few contrasts.
At 200mm conspicuously often lack focus.
- Massive, high-quality housing / Material.
- The zoom ring turned not uniform but sometimes hard, sometimes easy, not a particularly high-quality impression.
- The sharpness at maximum aperture was bad, in direct comparison with a Sigma 70-200 and a Nikon 28-300.
- Stopped down to f / 4, it brought good results, but I buy no lens with continuous f / 2.8.
Therefore, I can not recommend this lens. Whether it works better sensors to APS-C, I can not judge.
