Field curvature or aberration in optics such as binoculars

The picture, which was taken by a Lens lens generated has by nature a spherical error. The so-called image field curvature or Aberration. Depending on the quality of the binoculars, this results in a more or less less pronounced blurring of the picture.

Flattener Lenses for error correction in binoculars

This error can be corrected by appropriate optical elements - this is referred to as a "Flattener". These flatteners often also have a Influence on the focal length. One disadvantage is the reduced field of view.

Binoculars with flattener lenses in the DDoptics Shop

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DDoptics LUX-HR 8x25 ED Pocket Binoculars

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25 mm lens

Binoculars DDoptics Lux-HR 8×25 EDIn addition to the coating of optics, the glass quality or type of glass is one of the most important quality factors for binoculars and riflescopes " More info "Pocket"