随后探索频道空间的制作人伊恩·奥尼尔写到，“从镜头可以看出亮点在下降，好像在圣殿盘旋。”
As Discovery News space producer Ian o 'neill wrote, "the footage shows the light drop and seemingly hover just above the shrine."
使用变焦镜头的远摄端引入的22％流明输出下降。
Using the telephoto end of the zoom lens introduces a drop in lumen output of 22%.
短焦距摄像机镜头一般都存在比较严重的光学畸变，使成像质量下降。
There are bad optical aberration in the camera lens of short focus.
短焦距摄像机镜头一般都存在比较严重的光学畸变，使成像质量下降。
This method is good for the camera lens of short focus, it can correct the aberration caused by radial distortion perfectly.
同样的锐度下降问题也出现在镜头的长焦段（包括中央的锐度也下降得厉害）。
The same applies to the sharpness in general (including the image center) at the lens' tele setting.
手持拍摄时，最低安全快门速度为所用镜头焦距的倒数，低于这一速度，相机震动可能导致照片的锐度下降。
Camera shake rule: The slowest shutter speed at which you can safely handhold a camera is one over the focal length of the lens in use.
针对双镜立体照相技术重构立体图像画质模糊、图像受损、清晰度下降的问题，采用光开关对镜头光路左右对称分割，获得视差图像。
For solving the problem of ghost image recurred on 3DTV, the light-path of lens is symmetrically divided by optical switch to obtain parallax image.
针对双镜立体照相技术重构立体图像画质模糊、图像受损、清晰度下降的问题，采用光开关对镜头光路左右对称分割，获得视差图像。
For solving the problem of ghost image recurred on 3DTV, the light-path of lens is symmetrically divided by optical switch to obtain parallax image.
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