What is an eagle-eye lens?

Hawkeye lens and fisheye lens are different concepts.

Hawkeye lens usually refers to the lens structure of 4 pieces and 3 groups, which is characterized by sharp and small imaging, but the aperture is not large.

Fisheye lens refers to a lens with fisheye perspective and deformation effect.

Extended data:

Development course:

1890: Start production of camera lens.

1896: paul rudolph invented the ancestor of the plane lens.

1902: Tessar lens appeared, which was later called "Hawkeye".

1928: The extremely fast BiotarF/ 1 and F/0.85 lenses are introduced, which are specially designed for X-ray photography.

1932:Contax camera introduces high-speed Sonnar F/2 lens.

1935: T lens coating technology appears.

195 1: Flektogon wide-angle lens appears on single-lens reflex cameras PRAKTICA, EXAKTA and PENTACON six.

1954: Biogon F/4.5 lens appears with a viewing angle of 90 degrees.

1962: Zeiss lens was used in the "Mercury 8" space mission and became the first lens used in space.

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