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No imaging system is perfect, and so the MTF curve of a real system will drop off at higher spatial frequencies due to factors such as lens wavefront aberrations.

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The Modulation Transfer Function (MTF) is a valuable tool for manufacturers to assess the imaging capabilities of lenses and ensure they meet the desired standards for resolution and contrast. By analyzing the MTF curve, engineers can gain insights into the limitations and performance characteristics of a lens assembly.

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Dies ist ein Objektiv, bei dem der Primärstrahl parallel zur optischen Achse des Objektivs verläuft. Telezentrische Objektive auf der Objektseite sind nützlich, wenn eine koaxiale Beleuchtung erforderlich ist. Es ist vorteilhaft für den Empfang von regelmäßig reflektiertem Licht von Beleuchtungen, die senkrecht zum Objekt stehen. Bei der Messung von Abmessungen in Richtung der Schärfentiefe treten nur geringe Schwankungen der Werte und fast keine Eckenverzerrungen auf, so dass es sich für hochpräzise Messungen eignet. Einzigartig ist, dass der Abstand vom Objektiv zum Objekt (WD) nicht von der Größe des optischen Bildes des Objekts an den Bildpositionen beeinflusst wird. Beachten Sie, dass mit der Vergrößerung des Sichtfeldes auch die Objektivabmessungen zunehmen und der Preis entsprechend steigt.

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Modulation Transfer Function (MTF) is commonly used to qualify and evaluate the performance of imaging systems, such as lens assemblies. MTF is a useful tool for measuring and characterizing the resolution and contrast of a lens, which are key factors in determining its overall quality. The MTF curve of a lens assembly shows the degree to which the system can transfer contrast from the object to the image plane at different spatial frequencies. The MTF curve provides information about the lens' resolving power, or its ability to distinguish fine details in the image.

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The Modulation Transfer Function is crucial for optimizing the design of lenses and improving the manufacturing process. Engineers can use the MTF to refine designs, address aberrations or limitations, and enhance the overall quality of the captured images. Furthermore, the MTF curve allows for meaningful comparisons between different lens assemblies or imaging systems, enabling engineers to make informed decisions. By leveraging the insights provided by the MTF, manufacturers can ensure their lenses meet the desired performance standards, researchers can evaluate and advance imaging technologies, and photographers can select lenses that best suit their needs for capturing high-resolution and high-contrast images.