The Transfer Function we're measuring is plotted horizontally. The two completely different aspects we see plotted horizontally are either: ...
MTF - Modulation Transfer Function
Technology - Technology
Note: The following text passages may be able to give you an idea about MTF. However, the hard theory behind it is much bigger than what can be explained within an article.
MTF Modulation transfer function.
A measure of resolution for lenses and/or film.
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More Photographic Terms ...
MTF Modulation transfer function.
Techniques Glossary MTF Modulation transfer function.
A measure of resolution for lenses and/or film.
Transfer function
The capability of a device to transmit frequencies. See also MTF.
Transfer Rate
The rate at which data can be transferred, usually expressed as Kilobits per second (Kbps) or bytes per second (Bps).
Modulation Transfer Function. Basically the comparison between a graph with a set of lines, gradually increasing in width and spacing, and the reproduced image made with the lens tested for performance.
Modulation Transfer Function. The way people (who else, the magazines!) uses to measure a lens's ability to hold diminishing details of a subject. Why MTF ?
modulated transfer function (MTF)
a test that measures the optical frequency response of a scanner or other optical system.
Modulation Transfer Function (MTF)
MTF is probably best explained using the image below. At "A" we see a set of patterns of dark and light bars. There are 4 sets of bars at increasing small spacings.
A Modulation Transfer Function (MTF) quantifies how well a subject's regional brightness variations are preserved when they pass through a camera lens. The example below illustrates an MTF curve for a perfect* lens: ...
MTF (Modulation transfer function) A comparison of contrast between a test chart and the reproduced image. One of the measurements of lens performance used in the manufacturing process.
gamma or transfer function) have been applied. They do not represent the final file. The first section of Part II of this article will detail how the tonal curve affects these numbers and what the numbers in the final file will look like.
The transfer function from exposure to film density is a long S-shaped curve with the hightlights crowded together and the shadows crowded the same, with a 5 stop section in the middle which represented all the mid-tones.
Now we get to MTF (Modulation Transfer Function). This is a measure of lens performance and shows how well a lens reproduces object detail in the image it produces.
the best and fastest way to show your family and friends your favorite images, and the versatile and durable FinePix XP170 lets users capture images in more places, and then offers easy sharing with its innovative Wireless Image Transfer function, ...
"Dynamic Range and Transfer Functions of Digital Images and Comparison to Film". ClarkVision.com online article, July 3, 2005.
^ Ken Rockwell. "Film vs. Digital Cameras". KenRockwell.com online article, 2006.
^ Carson Wilson.
Unfortunately, like grain, there is no easy way to measure how sharp a lens is. (Well, there IS a way, the MTF, or Modulation Transfer Function, but this is a bit beyond the scope of this guide, and is seldom used to evaluate non-SLR lenses).
We found the same 10-stop total limit--interestingly 10-stops was the limit of the lens as well, as lens flare limits the average pro zoom to a 10-stop range. FWIW, even though Clark's target has a 10-stop range, if you look at his transfer function ...
Stretching Applying a mathematical transfer function to the pixel values in an array so that they are changed to better portray the image in terms of relative brightness levels. Often used synonymously with scaling.
 See also: Function, Image, Photograph, Film, Camera
  
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