But fortunately that is not usually the case, with binoculars the problem is usually one of the prisms is out of alignment. In theory this problem will be twice as bad with binoculars, as they have 2 tubes so double trouble. A badly collimated telescope will show a dim image, making the viewing scope appear hazy. They say that a well collimated telescope allows a column of light to travel through the objective lens and reflect off any mirrors or pass through any prisms then enter the viewing lens straight into your eye. It all derives from astronomers, they talk about collimating their telescopes. In most cases, this will cost you more than the purchase price of the binoculars, but the choice is yours.
It will work 100% but you may wish to take it to a professional for repair. The reason we keep referring to the warranty is that the following procedure will invalidate any warranty. If your binoculars are misaligned from day one, they should be returned to the vendor immediately and be repaired (under warranty). If the images are out of alignment, and it’s only slight, your brain will try to compensate for it, this will strain the muscles that are responsible for moving the eyes which can lead to headaches at best and nausea if not remedied soon enough. If there is a misalignment, it will be more apparent under the night sky than during daylight hours.
In binoculars collimation is the alignment of the 2 images from each tube merging into one.
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