This tester adopts programming by computer software, high magnification optical measuring system and photoelectric sensor etc such technique.

该机采用计算机软件编程，高倍率光学测量系统，光电传感等技术。

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It may be used to test the on - or off-axis various wavelength wave aberrations, chromatic aberration and other optical performances of various magnification microscopic objective.

该仪器可以测定各种倍率物镜轴上、轴外多种波长的波面像差等光学性能参数。

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There is a need for a small and fast optical zoom device that can change magnification.

需要一种可以改变放大率的小型快速光学变焦装置。

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Featuring a powerful high-magnification optical 26X super-telephoto zoom lens, the new PENTAX X-5 provides photographers with a focal length of 4mm-104mm (22.3mm ultra-wide angle to 580mm super telephoto 35mm equivalent).

ENGADGET: Pentax intros X-5 superzoom camera with 26x lens, tiltable LCD

Microdisplays are literally miniprojectors and require magnification by special optical devices to fill normal-size screens, he explains.

CNN: Watch for microdisplays this year