This page contains links to charts of the size of a 16-inch-high Siemens Star target at the minimum required camera-to-target distances that provide enough depth of field so that the amount of defocus blur with the target at the corners of the image when the camera is focused with the target centered is acceptable. In the case of these charts, the acceptable circle of confusion (CoC) is defined to be one-half the camera’s pixel pitch. The size of the target on the sensor is shown in pixels.
Once you get to the page you want — choose from the list below — and find the chart that’s appropriate to you, click on it. Then click on the image tht you see next. That will get you the full-resolution version of the chart, and you can copy it to your computer, or print it.