I dont want to derail this thread too much....
From a mathematical standpoint UNITY means 1. So when talking about clip on thermal sights it means that the little display your dvo is looking at is exactly 1.0x to agree with the outside environment. Not 1.2 or 1.05 or 1.003x. Turning a diopter on a device that is UNITY can alter that. For example lets say you're holding a skeetir up to your right eye with both eyes open and your looking at a person 20 feet away. With diopter set correctly to UNITY that person blends perfectly between both eyes. The top of the guys head lines up perfectly both visually and through the thermal. The real world and the thermal are in perfect UNITY together. So if I were to turn that diopter a bit I could misalign the top of the guys head between my two eyes. Now you don't have a UNITY display and you would introduce error in your poi especially when using high magnification in your dvo and/ or Dialing your turrets.
So basically if your skeetir diopter is set perfectly to UNITY then it should work the way it was intended. Adjustable diopters are needed when working with differing human eyeballs so they're typically employed on multi use devices like the skeetir that will have a hand held or helmet mount role....so the guy with 20/40 near sight vision can still have a clear image.
Parallax introduced from your dvo is another related topic we can cover later.
From a mathematical standpoint UNITY means 1. So when talking about clip on thermal sights it means that the little display your dvo is looking at is exactly 1.0x to agree with the outside environment. Not 1.2 or 1.05 or 1.003x. Turning a diopter on a device that is UNITY can alter that. For example lets say you're holding a skeetir up to your right eye with both eyes open and your looking at a person 20 feet away. With diopter set correctly to UNITY that person blends perfectly between both eyes. The top of the guys head lines up perfectly both visually and through the thermal. The real world and the thermal are in perfect UNITY together. So if I were to turn that diopter a bit I could misalign the top of the guys head between my two eyes. Now you don't have a UNITY display and you would introduce error in your poi especially when using high magnification in your dvo and/ or Dialing your turrets.
So basically if your skeetir diopter is set perfectly to UNITY then it should work the way it was intended. Adjustable diopters are needed when working with differing human eyeballs so they're typically employed on multi use devices like the skeetir that will have a hand held or helmet mount role....so the guy with 20/40 near sight vision can still have a clear image.
Parallax introduced from your dvo is another related topic we can cover later.