The APO (apochromatic) lens design on the telephoto is more immediately useful and effective. An APO lens significantly reduces chromatic aberration by focusing three wavelengths of light (red, green and blue) onto the same focal plane. This lens design means it can correct color fringing and improve image sharpness.
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There was no high school in Dhahran, so Friedmann’s parents sent him to Mercersburg Academy, a boarding school in Pennsylvania, where he became depressed. Proctor, who also attended the school, found one thing that could animate his friend: playing Dungeons & Dragons. Friedmann talked compulsively about one of his avatars, a thief rogue. It seemed to Proctor that Friedmann wanted to live in the game. Friedmann’s time at Mercersburg ended during his second year, when he attempted suicide by drinking chemicals. He was committed to a series of psychiatric hospitals.，这一点在谷歌浏览器下载中也有详细论述
«План А, предусматривающий быструю и чистую военную победу, провалился, господин президент. Ваш план Б потерпит еще больший провал», — написал он.