#Aperture

For our last Friday Night Lights of the year let’s “Focus On Your NVGs.” Pun intended. Most night vision devices have an adjustable front focus. However, for those of you who have looked through helmet-mounted or handheld night vision devices, you will know that they have a very shallow depth of field (DOF). DOF is a camera term. Basically, it means if you focus on something far, everything up close will be out of focus. If you focus on something close up, then everything far away will be out of focus. There are some add-on attachment devices that can help you refocus your NVGs without having to twist the front objective lens as well as increase DOF.

As many of my regular readers will know, I love aperture sights. I have never been able to understand why they did not catch on in the East. Tech-Sights have just started selling their new AK Aperture sight system.