We've written several articles describing Night Vision components and accessories.  Looking back at the articles I noticed I didn't even cover one of the most over looked accessories for your $3000.00 plus-dollar Night Vision Device (NVD), that would be the Sacrificial Window.

While doing some training I inadvertently smacked the lens of my night vision against a hard object, totally my fault and totally damn near ruined my NVD.  Luckily I had in place a Sacrificial Window over the objective lens of the NVD.  Sacrificial windows aren't cheap, the run between $25.00 and $35.00 bucks depending on where you find them.  That being said, $25 to $35 is nothing in comparison to a decent set of NVDs.  When I purchased mine they went right at $4000.00. 

When you are training and training correctly, equipment will get damaged, your physical body will get beat up, mentally you will be challenged.  This is what we want, we want to push ourselves in training, we want to learn our limitation, limitations on our equipment as well as better understand what our mental and physical capabilities are as we begin to move up and to the "over The Hill" points in our life.  

Just because we train hard doesn't mean we are abusing our equipment for the sake of abuse.  Using appropriate and often times included equipment designed to help safeguard equipment and your body- should be used.  I see a lot of people running equipment sans the protective equipment.  This sometimes is because they observed someone else doing it and believe they should in-turn emulate that person or they are not using the protective equipment out of ignorance.  Ignorance in both forms of uniformed ignorance and  tacticool, "i'm doing this because it looks cool" ignorance.  

Use protective equipment when it's available, if you feel it will hinder you yet you haven't actually attempted to try it, you are just speaking from a position of ignorance. 

Here are some pictures of a $30 dollar protective lens saving my $4000 set of NVDs from severe damage. 

Well we're half way through our first summer at our high-desert training site, and we've reluctantly come to the conclusion that it's in the best interest of good, effective training to adjust our schedule and move our training to the winter months. While our training site is cooler than Phoenix, it's still hotter than we'd prefer to be able to keep the training effective and safe. 

We want to make sure that our students can get the most out of the time we have with them. It's hard for them to do that when we're all more focused on not being overly hot. Classes will now be monthly from October through April, with special classes added in between as we can schedule them.

Night Vision Devices or NVDs are a much  more common piece of support gear as compared to just a few years ago.  Today quality NVDs can be purchased at a reasonable price, the utility of owning a set of NVDs is not lost on the average person who fully understands how much an NVD can enhance their low light / no light defensive capabilities .  When purchasing NVDs keep in mind certain considerations....

Jason S12-
A lot of great articles from Max and DTG on night fighting and low light considerations.  We would like to piggyback on their shirt tails, adding in some additional thoughts .


Why do object seem to fade out or disappear when we stare right at them at night?

This is called the “Night blind spot”.  It is Located in central viewing axis (fovea), the Absence of rod cells in fovea creates the blind spot.  The “night blind spot” encompasses a viewing area of  5 to 10 degrees center of your visual field of view.....