Pima iso 12233 camera resolution test chart

Note: The standard design is not sold as an Imatest Chart because it is functionally a subset of the enhanced version. Enhanced eSFR ISO test chart: aspect ratio, 6 added squares on sides, 16 added color patches, several added wedge patterns. Sharpness is derived from edges at the boundaries of the slanted squares, as described in Sharpness: What is it and how is it measured? The Imatest Standard eSFR chart is very close to the chart illustrated in the ISO standard document, with a few minor differences that maintain compliance with the standard.

The enhanced and extended charts add features to regions of the chart that are not specified by the ISO standard but don't violate it , and which will be valuable to most users. Matte surface is recommended for wide angle lenses. Photographic charts reflective and LVT film transmissive are much finer than inkjet: the same size chart is capable of analyzing much higher resolution cameras.

Image quality factors include:. All chart features— slanted-edges, grayscale patches, color patches, and wedges— are located automatically. Click on any of the thumbnails below or on the image itself, repeatedly to explore some of the many capabilities of eSFR ISO.

Note the description below the image. Note: the old ISO standard and chart, shown on the right, is referenced in the new ISO standard, but is no longer an official part of the standard. The new standard specifies three charts, one of which is a slanted-edge Edge SFR or E-SFR chart with much lower contrast ; shown on the right, below.

Automated region detection, based on location criteria you enter. Compared to the SFRplus chart:. Note: ISO has the same chart requirement. X Close. ISO — Photography— Electronic still picture imaging — Resolution and spatial frequency responses. Contains 9 slanted squares for slanted edge measurements. Siemens star chart Supported by the Imatest Star Chart module.

Closest to chart illustrated in the standard document. No added features. The reality isn't that simple; there are lots of subtleties having to do with focus distance, quality and contrast of your printer, evenness of illumination, surface reflections, etc.

It seems that most folks, for example Imaging Resource, use this chart for visual assessment of resolution, but it's designed to do more. These provide data for computational analysis of resolution; tools are available at this site to perform this analysis; for more information, see this page. There is at least one company selling a low-cost Google search or the Wikipedia article on optical resolution. See the I3A site for worldwide sources. The alternative is to do it on the cheap: take the PDF file, print it in an appropriate size, download the code, and start testing.

I think some people have posted raster images e. JPEG files of the chart on the Web; the outline description here should produce a better test chart, as it isn't limited to pixel-level resolution.