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- A typical lens has a focal length(f)of 625 mm. 常見鏡頭的焦距(f)為625毫米。
- Determine the focal length of your lens. 決定你鏡頭的焦距。
- C: Can I control the focal length? 我能控制焦距嗎?
- What is the best focal length for bird photography? 拍攝鳥兒最適合的焦距長度是多少?
- The focal length of a given lens is different for different colors. 一個特定的透鏡的焦距因顏色的不同而不同。
- The focal length is set to Flat stitch in the Properties window. 焦距在特性窗囗中被設定成平坦的一針。
- This photogragh is shot by lens with a long focal length. 這張照片是用長鏡頭拍攝的。
- The focal length of the camera lens plays an important role in photo criteria. 攝影機鏡頭的焦距在攝影規範中起著重要的作用。
- Focal length The distance between the centre of a lens and its principal focus. 鏡頭中心與其主焦點的距離。
- The solid tunable focal length microlens in our study is still a prototype. 本研究所提出之固態調焦透鏡兼具微小化、積體化、可單一或陣列使用、及系統整合性高等優點。
- Here the combinations of Testcharts and measuring objectives for different focal length ranges are preset. 在這裡預置不同焦距範圍的測量物鏡與測試圖表之間的組合。
- Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses. 用普通的短焦距透鏡不難得到直徑只有幾十微米的光點。
- The focal length of the conelensing lens should be such that the image of the source just fills the projecting lens. 聚光透鏡的焦距應使光源的像正好照滿放映透鏡。
- A unit of measurement of the refractive power of lenses equal to the reciprocal of the focal length measured in meters. 屈光度透鏡或稜鏡折光率的一種量度,等於以米計算焦距之倒數
- As a result, the focal lengths in these planes will be different. 結果,這兩個平面內的焦距將不同。
- In taking a picture, the shutter,the focal length and the other things must be adjusted as the case may be. 在拍照過程中,快門、焦距等等必須按實際情況加以調整。
- In order to be able to evaluate a large focal length range, different converter lenses must be used. 為了能夠計算較大的焦距範圍,根據焦距的大小必須使用不同的轉換透鏡。
- Objective and the focal length of the specimen to be measured. The measurement of the size of the reticle. 十字線的像的尺寸取決於准直儀物鏡的焦距和待測樣品的焦距。
- Notice the difference in the apparent distance of objects that each focal length produces. 注意每種焦距所產生的物體視距的差異。
- The unsteadiness of air becomes prohibitive only if instruments with large focal length are used. 只有在使用長焦距的儀器時,才不允許空氣的不穩定。