Customers ask - experts answer

It is often the little hints and tips that make everyday life easier. Our experts offer you advice on your optics.

Exit pupil diameter and light transmittance

When daylight comes in through a window, the brightness in the room depends on two factors: the size of the window and the cleanliness or opacity of the glass. The same principles apply when we talk about the brightness of a pair of binoculars. ZEISS expert Walter Schwab, trainer at the academy, used this analogy to answer a nature lover's question.

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Care of the Optics

Modern ZEISS binoculars and spotting scopes are extremely robust and protected reliably against dust and moisture. This makes them very easy to care for; in particular, this applies to the glass surfaces on the ZEISS Victory products with their hard, water and dirt-repellant LotuTec® coating. Nonetheless, several points should be observed to ensure the performance over many years and decades.

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Diopter Adjustment

Have you ever given thought to the fact that your eyes probably don’t have the same ability to see? Our ZEISS binoculars enable you to mechanically adjust this difference of left and right eye, which means the binoculars function as a diopter compensator. Read more instructions here:

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