Getting the target in the right place and set up appropriately is important. To save any concern over whether your test results are valid, FoCal has a Target Setup utility which checks lots of details about your setup and lets you know if anything needs adjusting.
Target Setup - Checks
FoCal offers lots of ways that you can test and check your camera, and most of these require the use of a calibration target. For the test to give the best results under the widest conditions, the target should be set up in a fairly specific way, and the Target Setup Utility is designed to make this both as easy as possible and to give you confidence that everything is correct and ready for testing.
Operation is simple:
The tool checks the following:
And reports each item as:
|Warning||Condition that should be corrected before running tests|
|Advisory||Condition that is unusual and should be checked to ensure it is intended|
|Untested||Not all settings can be checked. Check these manually|
|OK||Checks passed without issue|
When using the Aperture Sharpness test, you need to start with the best possible focus. For this, the Target Setup utility has the Focus Controls mode.
Target Setup - Focus Controls
This panel allows control of the camera focus system and driving of the lens, and also reports back relative qualities after each adjustment operation in a simple colour chart so you can determine the best possible focus before starts the Aperture Sharpness test.
For all the details take a look at the FoCal reference manual in the Documents Download page.