What is mtf mean?

MTF stands for Modulation Transfer Function and is a measurement used to evaluate the sharpness and resolution of an imaging system, such as a camera or lens.

MTF measures the ability of the system to accurately reproduce details in an image by quantifying the contrast of a sinusoidal pattern at various spatial frequencies. A higher MTF value indicates better image sharpness and resolution.

MTF is often represented graphically as a curve showing contrast against spatial frequency. The MTF curve can help photographers and optical designers evaluate the performance of different lenses or camera systems and choose the best equipment for their specific needs.

Overall, MTF is an important tool for assessing the image quality of optical systems and can help ensure that images are sharp and detailed.