6SL3352-1AE41-0FA1

6SL3352-1AE41-0FA1

6SL3352-1AE41-0FA1

6SL3352-1AE41-0FA1

用普通人能理解的话来说，要让景物的某个部分清晰成像，就需要对那一部分对焦。假设现在要拍摄一个物点。为了清晰成像，这个点发出的光线应该聚集在传感器的一个点上。

什么是“合焦”？

在摄影中，如果一张照片上被摄物有锐利的边缘，并且所有边缘都锐利，我么就说它“合焦”了。

对焦工作在镜头内部通过移动一或多枚镜片的位置来实现。移动镜片，就会改变通过光线的路线，从而改变光线聚焦的位置。理想情况下，我们希望光线地聚焦在传感器上，此时就成为合焦。

6SE6440-2UC34-5FA1  6SE6440-2UD13-7AA1 6SE6440-2UD15-5AA1 6SE6440-2UD17-5AA1 6SE6440-2UD21-1AA1 6SE6440-2UD21-5AA1 6SE6440-2UD22-2BA1 6SE6440-2UD23-0BA1 6SE6440-2UD24-0BA1 

6SE6440-2UD25-5CA1  6SE6440-2UD27-5CA1  6SE6440-2UD31-1CA1  6SE6440-2UD31-5DA1  6SE6440-2UD31-5DB1  6SE6440-2UD31-8DA1  6SE6440-2UD31-8DB1 6SE6440-2UD32-2DA1 6SE6440-2UD32-2DB1 

6SE6440-2UD33-0EA1  6SE6440-2UD33-0EB1  6SE6440-2UD33-7EA1  6SE6440-2UD33-7EB1  6SE6440-2UD34-5FA1  6SE6440-2UD34-5FB1  6SE6440-2UD35-5FA1 6SE6440-2UD35-5FB1 6SE6440-2UD37-5FA1 --

6SE6440-2UD37-5FB1  6SE6440-2UD38-8FA1  6SE6440-2UD38-8FB1  6SE6440-2UD41-1FA1  6SE6440-2UD41-1FB1  6SE6440-2UD41-3GA1  6SE6440-2UD41-3GB1 6SE6440-2UD41-6GA1 6SE6440-2UD41-6GB1  

6SE6440-2UD42-0GA1  6SE6440-2UD42-0GB1  6SE6440-2UE17-5CA1  6SE6440-2UE21-5CA1  6SE6440-2UE22-2CA1  6SE6440-2UE24-0CA1  6SE6440-2UE25-5CA1  6SE6440-2UE27-5CA1 6SE6440-2UE31-1CA1 

6SE6440-2UE31-5DA1  6SE6440-2UE31-8DA1  6SE6440-2UE32-2DA1  6SE6440-2UE33-0EA1  6SE6440-2UE33-7EA1 6SE6440-2UE34-5FA1  6SE6440-2UE35-5FA1  6SE6440-2UE37-5FA1  6SE6440-2AB11-2AA1 

6SE6440-2AB12-5AA1  6SE6440-2AB13-7AA1  6SE6440-2AB15-5AA1  6SE6440-2AB17-5AA1  6SE6440-2AB21-1BA1 6SE6440-2AB21-5BA1 6SE6440-2AB22-2BA1 6SE6440-2AB23-0CA1 6SE6440-2AC23-0CA1 

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