Edge sharpness for binoculars

Edge sharpness for binoculars

Edge sharpness in the field of view of binoculars

For technical reasons, image sharpness decreases from the centre of the image to the edge with every lens (due to the shape of the lens).

As a rule it can be assumed that the higher the quality standard of the binoculars, desto besser ist auch die Randschärfe bzw. umso geringer ist der Schärfe Abfall.

If the field of view is generously specified for inexpensive binoculars but caution is advised!

It is possible that the larger Field of vision at the expense of reduced edge sharpness achieved. Other suppliers, on the other hand, advertise optimum edge sharpness, but conceal the fact that this was achieved by reducing the field of view. However, if perfect edge sharpness is achieved exclusively through a Artificial reduction of the field of vision this speaks more for a creative marketing approach on the part of the provider than for the sound quality of the optics.

So that you can Realistically assess the quality of an optic should therefore the field of view and the edge sharpness of a product always be assessed jointly.

In general, it is always recommended the following quality features bei Ferngläsern zu prüfen:

  • Edge sharpness
  • Image brilliance
  • Twilight performance
  • Field of vision
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