Description
_x000D_ Huygenian Eyepiece X 7_x000D_ Composed of two plano convex lenses, separated by an air space. The image plane is between the two lenses. The top lens is adjusted to bring the graticule into focus._x000D_ _x000D_ Field of view: 5mm diameter_x000D_ Graticule: 16mm diameter_x000D_ Reference No.: F7_x000D_ _x000D_ Kellner Eyepiece x 10_x000D_ The F10 eyepiece, which fits most standard monocular microscopes, is specially designed to receive eyepiece graticules of 16mm diameter. This allows the graticule to be brought into sharp focus when superimposed on the object image, which is often difficult to achieve with fixed focus eyepieces. The graticule is held by a screw-on retaining ring and is easily removed for cleaning or replacement for another pattern._x000D_ Composed of a convex lens and an achromatic lens. The image plane is below the lens elements. The use of an achromatic lens provides a larger field of view, better color correction and substantial eye relief. The top lens adjusts to focus on the graticule._x000D_ _x000D_ Field of view: 15mm diameter_x000D_ Graticule: 16mm diameter_x000D_ Reference No.: F10_x000D_Kellner Type Eyepiece (Wide Field x10)_x000D_
With high eye point (useful for spectacle wearers). Non-focusing wide field.
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Field of view: 18mm diameter_x000D_
Graticule: 19mm diameter_x000D_
Reference No. : F12
