Sentence Examples


  • Cynthia responded, focusing her attention on a speck of dirt on the counter.
  • Lemiere's instruments a common focusing arrangement, and inter-pupillary distance was effected by 'a' --?- --' FIG.
  • Where very short focus simple microscopes are employed, using high magnifications, it is imperative to employ a stand which permits exact focusing and the use of a special illuminating apparatus.
  • Since, however, only relatively low powers are now employed, the ordinary rack and pinion movement for focusing suffices, and for the illuminating the object only a mirror below the stage is required when the object is transparent, and a condensing lens above the stage when opaque.
  • This representation acquires a special importance if the object be micrometrically measured, for an inaccuracy in focusing does not involve an alteration of the size of the image.
 

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