Reikan FoCal - MultiTest

MultiTest

The FoCal MultiTest measures across the whole focus and aperture range to create a detailed view of the performance of your camera and lens.

In a single test, MultiTest can give you information about:

  • Calibration
  • Aperture Sharpness in lots of detail
  • Focus Consistency
  • Focus Shift
  • Autofocus error
  • Spectral (colour) information
  • Vignetting information

and more!

Opening MultiTest

You can open MultiTest either from the Camera menu, or from the MultiTest card on the Camera page.

Setting Up

In order to use MultiTest, you need to ensure that the camera and target are set up correctly. Target Setup utility is an automated utility which will help you do this - all the information you need is here.

You can access Target Setup from the Target Setup button on the test footer bar, from Camera menu or from the Camera status page.

Running MultiTest

Once the setup steps above are complete, you are ready to run MultiTest.

You can start the test with the Start button in the Status tab, or with the Start button on the test footer bar.

The Status tab provides information about how the test is progressing, including an estimated time remaining and estimate time to next user interaction (for User Assisted Mode cameras – see below).

“Hands Free Mode” and “User Assisted Mode” Cameras

Depending on whether your camera supports Hands Free Mode or User Assisted Mode (see here for the camera support list), you may be prompted periodically to change the AF Microadjustment / Fine Tune of your camera. For detailed information about this, please see here.

Reviewing the Results

The Summary page shows basic results for the MultiTest.

Test Results Overview

The Test Results Overview card shows a few essential test results. In this case, it shows that the lens is in need of calibration, and shows the number of measurements taken.

Chart

The Chart card shows the Quality Grid chart, which shows quality information across the focus and aperture range.

Note that it can take quite some time (50 shots or more) before information is shown on the summary page chart.

Crops

The Crops card shows the comparison between the and worst images captured.

You can slide the bar in the crop images left/right to better review the comparison. You can also make the crop card large with the maximise button on the top of the card (this applies to any card which have this button).

Some measurement values are indicated below each side of the crops.

Test Overview

The Test Overview card gives basic information about the test – for example which camera and lens were used.

Interpreting the Results

The MultiTest gives a huge amount of information – please see the Details - MultiTest for further information.

Further Details

Settings

See Settings – MultiTest for further information.

Detailed Results

See Details - MultiTest for further information.

Charts

MultiTest offers the following charts (click a link for detailed information):

Quality Grid – MultiTest

Quality & Shift – MultiTest

Aperture Range Quality Score (ARQS) – MultiTest

Calibration Curve – MultiTest

Aperture Sharpness Profile – MultiTest

Autofocus Error – MultiTest

Astigmatism Factor – MultiTest

Red-Blue Ratio – MultiTest

Red Quality – MultiTest

Blue Quality – MultiTest

Image Motion – MultiTest

Corner Brightness Profile – MultiTest