[
UK
/dɪˈɒptɐ/
]
NOUN
- a unit of measurement of the refractive power of a lens which is equal to the reciprocal of the focal length measured in meters; used by oculists
How To Use dioptre In A Sentence
- • Magnification 0. 96x with a 50mm lens and -1 dioptre News: Digital Photography Review (dpreview.com)
- A dioptre adjustment wheel is immediately adjacent, enabling the short sighted to use it without clashing spectacles. Photography Blog - News
- Refractive error is measured in dioptres, and myopia is designated with a minus sign.
- The presence of 1 dioptre of refractive error reduces Snellen visual acuity to less than 6/12 that is, below the level needed to drive.
- The focusing power of a lens is measured in dioptres.
- • Magnification 1. 15x with a 50mm lens and -1 dioptre News: Digital Photography Review (dpreview.com)
- • Magnification 1. 02x with a 50mm lens and -1 dioptre News: Digital Photography Review (dpreview.com)
- The second way to compose your images is the electronic viewfinder, which juts out from the rear of the camera and helpfully offers dioptre control for glasses wearers. Photography Blog - News
- The difference between the focusing powers of these two axes, measured in dioptres, is the astigmatism.
- The binoculars also feature an eye-piece dioptre adjustment and fold-down rubber eye-cups making them suitable for spectacle wearers. Times, Sunday Times
