What is a good MTF value?
Generally, contrast will typically be higher than resolution in MTF charts, so anything higher than 0.9 indicates excellent contrast, between 0.7 and 0.9 is generally very good, between 0.5 and 0.7 is average and anything below 0.5 is soft / bad.
What is the relation between MTF and resolution?
UNDERSTANDING MTF The MTF of a lens, as the name implies, is a measurement of its ability to transfer contrast at a particular resolution from the object to the image. In other words, MTF is a way to incorporate resolution and contrast into a single specification.
What does MTF mean in manufacturing?
MTF and Lens Measurement The Modulation Transfer Function (MTF) is a measure of the ability of an optical system to transfer various levels of detail from object to image. Performance is measured in terms of contrast (degrees of gray), or of modulation, produced for a perfect source of that detail level.
What is a MTF curve?
The modulation transfer function (MTF) curve is an information-dense metric that reflects how a lens reproduces contrast as a function of spatial frequency (resolution). These curves offer a composite view of how optical aberrations affect performance at a set of fundamental parameters set by application need.
What affects MTF?
Pixel size varies from camera to camera, depending on the size and the resolution of the sensor (number of pixels). The smaller the pixels, the higher the resolution required from the lens. MTF is significantly affected by a number of factors such as the aperture setting.
What is an MTF curve?
What is MTF performance?
Modulation Transfer Function or “MTF” is a measurement of the optical performance potential of a lens. A MTF chart plots the contrast and resolution of a lens from the center to its edges against a “perfect” lens that would transmit 100% of the light that passes through it.
What does MTF stand for in finance?
multilateral trading facility
A multilateral trading facility (MTF) provides retail investors with an alternative platform to trade financial securities. Market operators and investment banks usually operate MTFs.
How does an MTF work?
A multilateral trading facility is a type of trading venue where financial instruments are exchanged. Brokers, market makers, banks, hedge funds and asset managers can connect to MTFs directly – becoming ‘members’ – while retail traders can only access the markets on offer via a provider of their choosing.