Twilight Factor
Binocular Terminology
The twilight factor has the most significant impact on resolution or image details. It is a measurement to distinguish efficient viewing in low light conditions. The Twilight Factor is calculated by taking the square root of the product of the magnification and the aperture. The higher the twilight factor the better the resolution e.g. when viewing under low light conditions.
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STEINER-OPTIK GmbH | 95448 Bayreuth | Germany | Fon +49 (0) 921 7879 851 |
STEINER-OPTIK GmbH | 95448 Bayreuth | Germany | Fon +49 (0) 921 7879 851 |