a lens that costs around 1000 and partially made of plastic do not need me. This affects me to be a weak point in the rotation / shift digits. Since the exposed gears seen from behind one of which called off what yes definitely takes place somewhere must go lands abrasion well either in the objective lenses btw where you never get there to clean the sensor or camera. Something I find uninteresting. due to the above facts, it is an absolute bad design and billigstbauweise so ego can only return. Perhaps a good optical performance but I would not deny an objective that will pollute the passage of time by itself is probably forgetting. If here Walimex brings a Mark II version that is better constructed try ego left again. so the objective was back immediately! and from pollution by the abrasion-I can only warn everyone! Otherwise, it is definitely too expensive.
