3207 - No Parallax Outside Micrometer 0.001mm

A no parallax micrometer is a precise measuring instrument used primarily in astronomy and engineering to measure distances or angles without the need for parallax correction, which can introduce errors in measurement. This micrometer operates by using a system that minimizes parallax, allowing for accurate measurements.

Parallax is the apparent shift in the position of an object when viewed from different perspectives. This effect occurs because the observer's position changes relative to the object, causing it to appear to move against the background. In astronomy, for example, parallax is used to measure the distances to nearby stars. In precision instruments, parallax can cause errors if not corrected, which is why no parallax micrometers are designed to minimize or eliminate this effect, ensuring accurate measurements.