15x binoculars by DDoptics
Binoculars with 15x magnification are often used for hunting in the field or at dusk. Good 15x binoculars such as the Pirschler binocular can also be used for night hunting when there is enough residual light. In Africa, such an enlargement can make great experiences visible on safari.
But why are the 15x binoculars all so big? Why are there no 15x42 binoculars at DDoptics? The answer to this question is easy to answer and has to do with the exit pupil of the 15x binoculars.
Exit pupil of binoculars
What should you pay attention to?
The formula for calculating the exit pupil quickly provides clarity here. Exit pupil = lens diameter : magnification. The magnification of binoculars therefore counteracts the brightness of the image.
The aim is to achieve an image that is as bright and clear as possible, even with a 15x magnification.
Negative example: With 15x42 binoculars, the formula (42 : 15) would result in 2.8 mm. A particularly bright image cannot be expected with an exit pupil of 2.8 mm.
Positive example: If you take a larger lens, e.g. 15x56 binoculars, the exit pupil is already 3.74 mm. 1 mm doesn't sound like much, but it makes a very big difference to the eye.
Note: In order to achieve a bright image even with high magnification, you need a larger lens. Of course, the image brightness also depends on the quality of the binoculars' optical system.
DDoptics binoculars with 15x magnification
A DDoptics 15x56 binocular is definitely a special experience. With this you are very close!
Pirschler binocular 15x56
The Pirschler binoculars 15x56 are very bright binoculars and are ideal for night hunting due to the high image brightness and brilliance, especially when it is getting darker.
ERGO binocular 15x56
The Nighteagle ERGO binoculars 15x56 are high-performance, bright and high-contrast binoculars at an affordable price with good edge sharpness. Ideal for moonlight and backlighting when hunting from a hide.