eyepoint
/ˈaɪˌpɔɪnt/
noun
- The correct position where your eye should be placed to see clearly through an optical instrument like a microscope or telescope.
- You need to find the eyepoint to get a sharp image through the binoculars.
- The microscope has a mark showing the ideal eyepoint for comfortable viewing.
- If you move your head away from the eyepoint, the picture becomes blurry.