2020年2月12日 · The MTF graph looks messier than Nikon’s, but it actually provides more useful information. The thick lines represent contrast measurements (10 lines/mm), while the thin lines represent resolution (30 lines/mm). The black lines show performance at maximum aperture, while the blue lines show performance at f/8.

MTF charts (short for Modulation Transfer Function) provide a graph analyzing a lens' ability to resolve sharp details in very fine sets of parallel lines, and a lens' contrast or ability to provide a sharp transfer between light and dark areas in sets of thicker parallel lines.

2013年5月7日 · MTF charts give the serious photographer a way to compare how some of these aberrations can impact a lens’ ability to transmit detail and contrast to the film plane or image sensor, and provide a meaningful method of making comparisons between one lens and another.

This graph shows a sinusoidal stripe pattern (black curve) as an intensity profile (a cross-section perpendicular to the stripes). It has 20 periods per millimeter, so one period is 50 µm long. The red and blue curves are cross-sections of the brightness distribution in a point spread. The brightness that would exist with ideal

2022年12月8日 · Here’s an introductory guide on how to accurately read an MTF chart and how to take their readings into account for your purchase. MTF charts give photographers a decent indication of how a...

The MTF chart for each lens is based on the value at the maximum aperture of the lens; the red line shows the spatial frequency of 10 lines/mm and the blue line, 30 lines/mm. In the off-axis field, contrast reproducibility of the lens for sagittal direction and meridional direction varies with astigmatic affection.

This guide is tailored to equip you with the knowledge needed to interpret MTF charts, thereby empowering you to make informed decisions when selecting lenses for your camera. Continue reading to unravel the layers of an MTF chart, from its basic anatomy to the intricacies of lens resolution and aberrations.

What is a lens MTF chart and how do I read it? Modulation Transfer Function or "MTF" is a measurement of the optical performance potential of a lens. MTF charts can give you a better understanding of the optical quality of various NIKKOR lenses and can be useful references when researching and comparing a lens.

2024年12月20日 · In this article, we will explain the basics of how to look at this MTF curve and how to use it when choosing a lens. What is MTF (MTF curve)? MTF is an abbreviation for "Modulation Transfer Function," and it is a numerical representation of how faithfully the light signal can be transmitted to the sensor through the lens.

2024年9月21日 · In this post we will review the definitions, show example charts, impact of sensor, abberrations, Meridional and sagittal plots and diffraction limited optical systems. MTF stands for modulation transfer function, this means the transferring of differing optical spatial frequencies through an optical systems.