For a person who does not know about cinematography or photography, he or she may not be very familiar with how the lenses are to be tested or how to make sure that they can provide quality images for any project it needs to be used. But for those who are into optical designing the performance of the lenses matter. MTF is the common method being used to measure optical systems. The resolution and the contrast are one of the most important components of the MTF.
MTF stands for modulation transfer function. The simple way to understand it is based on the important components that it has. They are the resolution and the contrast.
Resolution: This is the imaging system’s capacity to differentiate object detail. This is frequently expressed using sequence of 1 black line and 1 white line or also called line-pairs/millimeter. The measure of this is also called frequency. The use of the resolution component is to give the finest detail of the object. If there is low resolution you can get low detail of the object but when it is high resolution you will clearer detail of the image or object. The line-pairs/millimeter is being used to determine the resolution and that is by the use of the equipment in MTF testing.
Contrast: When defining contrast in the optical system the image that has to appear, if black must be black and if white must be white with just minimal result of grayscale that is in between. The result of the contrast is based on the black and white resolution that will be targeted to produce the resolution that is needed on the image. The camera sensor, imaging lens and illumination are playing the key functions in determining the result of the image contrast.
On the website http://www.image-science.com you can have the there the MTF testing that is significant for the performance of the lenses. The MTF testing plays important role for its components. The lenses are important to produce good quality images and the contrast and resolution are part of it. The equipments are important for the testing to make sure that the lenses will have the quality that it need. For someone who needs to produce quality images for photography or filming, lenses must be tested to ensure that you can get the details of the object that you need for your project.
All are important in taking images especially in cinematography. Those components are very important to ensure that the images are on the right track or just the quality that is needed in the film or photography. Film making can be very complicated when it comes to determining the components of MTF. Since MTF is the method to use in checking the performance of all lenses, you need to look for someone or company that has the equipment to ensure that the components are tested and will only produce the right resolution and contrast of an image. This is the most delicate part of cinematography.