Description

These eyepieces fit most standard microscopes (23.2mm fitting) and can be incorporated in other optical systems, especially where a graticule is required for measurement or alignment. The 12 EW 23 is a low-cost type without provision for a graticule. For incorporation in instruments the astronomical eyepieces listed below should also be considered.

For regular use with a graticule we recommend the focusing eyepiece 10 EF 23 which allows adjustment for individual users’ sight.

The filar micrometer eyepiece 16 EM 25 allows very accurate measurements of position, having a crosshair driven by an external micrometer head and reading to 10 microns. This unit clamps on the outside of an eyepiece tube (25mm dia.).