優點:
1. Solid built.
2. Cheap. I got 2nd hand at 2.5k only
3. Good quality at 80-135mm, even at F 2.8.
4. Natural colour. Not so vivid as Minolta 70-210 F4.
缺點:
1. Heavy, but every 200mm F2.8 is heavy.
2. Not sharp enough after 135mm at F 2.8. However, the quality is improved at F 4.0 and afterwards. I feel that the best is at F 8 - F 11.
3. Minimum focus distance 1.8m.
4. No IS or VR, but I use it in KM D5D with anti-shake, so no impact.
評價:
Not regret to but it. Recommend to those who not frequently use F 2.8 (actually the depth of view is too short if at 200mm). You can treat it as a F 4 tele lens, and F 2.8 is a bonus for emergency. It is still much cheaper that the original ones. Unfortunately it is not easy to get one even in 2nd hand market.