Lessons
Lessons
What Is NETD in Thermal Scopes? Guide to Thermal Sensitivity and mK Ratings
by TDX Optics
on Jul 23 2026
While resolution and magnification get the most marketing attention, NETD is actually the unsung hero of your thermal scope’s performance. It is the core metric that determines whether you will see a clear, detailed picture or a blurry, washed-out grey screen when environmental conditions get tough.
Lessons
Why Does My Thermal Scope Freeze and Click? Understanding Non-Uniformity Correction (NUC)
by TDX Optics
on Jul 21 2026
Understanding what a NUC is, why your scope does it, and how to manage it will help you get the absolute best performance out of your thermal optic.
Lessons
Why Weather Matters: How Rain, Fog, and Humidity Affect Your Thermal Optic
by TDX Optics
on Jun 25 2026
You bought a top-tier thermal optic, and on your first clear, cold night, the image is unbelievably sharp. But a few weeks later, you head out on a warm, humid evening, and the display looks flat, fuzzy, and washed out. You might wonder: is your scope broken?
Lessons
Demystifying Daytime Thermal: Can You Really Use a Thermal Scope in the Sun?
by TDX Optics
on Jun 18 2026
When most people think of thermal scopes, they picture tactical night missions, predator hunting in pitch-black conditions, or search-and-rescue teams scanning dark forests. Because of this, one of the most common questions from beginners is: Can you actually use a thermal scope during the day, or will the bright sun damage it?
3135 Kashiwa Street
Torrance, CA 90505
info@tdxoptics.com
3135 Kashiwa Street
Torrance, CA 90505
info@tdxoptics.com