The choices in the infrared camera market go beyond camera features such as resolution, Bluetooth capability and storage card size.
Today, the infrared camera accessories market is a separate category. In infrared-energy, you can find many thermal cameras with various advantages.
Additional lenses are usually a common choice for adding platforms to basic thermal imaging cameras, but does everyone need an additional lens?

Infrared cameras have a standard lens designed to provide visibility that allows surface inspection.
Obviously, when you get close to the target, your perspective changes.
Sometimes we can adjust our relative position to interesting regions to make up for the limitations of optical standards.
If you get the task of checking something such as overhead bus lines or poles installed by electrical equipment, visibility is needed to get the target closer even to see the components seen.
Another option is a telephoto lens. An optical telephoto lens narrows your viewing distance, the effect is to make the object you see become “closer” to the camera, or the magnifying image.
If most of your targets are at a great distance from where you can stand and see them, then the telephoto lens is very valuable to have. On the other hand, for example, use a coin when our target or area of interest is too close to the position during the inspection and cannot see fully as desired. This can occur in electrical rooms, mechanical areas, and in inspection buildings.
This is a very good opportunity to use a wide-angle lens.

A wide-angle lens is the opposite of telephoto, extending your field of view, effectively pushing the target “away” from you, or reducing the image.
In short, what makes an optional lens right for you for your various types of inspection.
If you can easily move closer or away, the need for additional lenses is not needed.
But if you need to increase or decrease the size of the target you are looking at, an optional lens will help you get the best thermogram.