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Barlow lens

Barlow lens

Optical lens used to increase focal length.

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 257 clicks on its links

  1. Teleconverter

    Secondary lens mounted between a camera and a photographic lens.

    40%

  2. Peter Barlow (mathematician)

    English mathematician and physicist (1776–1862).

    22%

  3. Secondary lens

    20%

  4. Apochromat

    Type of photographic or other lens.

    10%

  5. Chromatic aberration

    Failure of a lens to focus all colors on the same point.

    3.9%

  6. Spherical aberration

    Optical aberration.

    3.9%

Readers come from

Share of the 285 readers arriving from another article

  1. Achromatic lens

    Lens that is designed to limit the effects of chromatic and spherical aberration.

    31%

  2. Telephoto lens

    Type of camera lens with long focal length.

    22%

  3. Coma (optics)

    Aberration inherent to certain optical designs or due to imperfection in the lens.

    12%

  4. Lens

    Optical device which transmits and refracts light.

    9.8%

  5. Aircraft spotting

    Observation hobby.

    8.8%

  6. Eyepiece

    Type of lens attached to a variety of optical devices such as telescopes and microscopes.

    8.4%

  7. Teleconverter

    Secondary lens mounted between a camera and a photographic lens.

    4.2%

  8. Telecompressor

    4.2%