Adding Prescription Lenses
In the event that a spectacle wearer cannot obtain the required eye relief that he requires, it should be noted that some cameras and microscopes allow prescription lenses to be fitted onto their eyepieces. In this way the user can temporarily dispense with his glasses in favor of the lens mounted on the optics. Although not ideal, in that this method does not afford good incidental vision for the field around him, (only through the optics), it might still be of use to some individuals.
Read more about this topic: Eye Relief
Famous quotes containing the words prescription and/or lenses:
“I am like a doctor. I have written a prescription to help the patient. If the patient doesn’t want all the pills I’ve recommended that’s up to him. But I must warn that next time I will have to come as a surgeon with a knife.”
—Javier Pérez De Cuéllar (b. 1920)
“Life is a train of moods like a string of beads, and, as we pass through them, they prove to be many-colored lenses which paint the world their own hue, and each shows only what lies in its focus.”
—Ralph Waldo Emerson (1803–1882)