Low Light Binoculars

The binoculars discussed so far have apertures below about 42 mm, and sporting exit pupils of about 5 mm or less. Sometimes though, it pays to have a binocular that is good at picking off details in low light conditions such as at dawn, dusk, in Moonlight, or when scanning inside a thick canopied forest where little light penetrates, especially on dull, overcast days. In such situations it’s a very good idea to investigate binoculars having larger apertures and or lower magnifications to increase the size of the exit pupil in order for your eyes to gather as much light as possible. As you might imagine, low light binoculars are very popular among hunters, who often do their best work just before or after sunset or just before the sun rises in the morning. This chapter will explore this special class of binocular – used for low light applications.