| Hamilton was so nervous in her presence that he broke the eyepiece of the telescope whilst trying to give her a demonstration. |
| The diameters of the starch granules of each gradient were determined using an eyepiece micrometer calibrated with a stage micrometer. |
| The binoculars feature inner-focus design, extendible eyepiece rings and rubber-coated outer housing. |
| I should know, for they do resemble out-of-focus star images at high magnification in a telescope eyepiece. |
| The Keplerian telescopic system is heavier than the Galilean telescope because the eyepiece and objective are composed of two plus lenses. |
| A roof prism design, it sports central focusing, click stops on the eyepiece diopter, and helicoid eyecups. |
