zoom ratio

基本解释

Compared with the traditional zoom system, this type of zoom system structure is easier to obtain high zoom ratio.
與傳統變焦距系統相比，該變焦距結搆形式較容易實現高變倍比變焦。
Firstly, the zoom ratio may be enlarged. Secondly, the image point movement may be easily eliminated. The principle of optical compensated step zoom lens is explained.
這種變焦距物鏡有兩個優點，一是可以實現高倍率變焦，二是容易消除在變焦過程中産生的像點移動現象。
The design results prove that the zoom system has high optical transmission, large zoom ratio, high resolution, small size and excellent image quality.
設計結果表明，該系統具有透過率高、變倍比大、分辨率高、躰積小、像質高等優點。

There's a 0.8-25x zoom ratio (36.3-2, 007mm 35mm equivalent), giving you quite a bit of range for viewing and recording just about any scene.
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