ZEISS Camera Lenses India - Batis 85mm f/1.8 is a portrait-length, short telephoto lens featuring a fast maximum aperture for greater focus control and enhanced low-light shooting. The Sonnar-type design, in conjunction
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The elements of vegetable histology. Plant anatomy. B' Fig. 12.—Formation of Virtual Image by Convex Lens. 1. Optic axis. 2. Focal points. A-B. Object within focal point (2). A'-B'. Virtual image
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Ocular refraction and the shadow test . tne principal axis, forms a secondary axis whichis practically an unbroken line, the incident and emergent rays beingparallel and but slightly displaced even in the
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