Hi,
When you're editing the A, B endpoints of a camera path you can use the Alt + Space + left mouse button combination to adjust the focus distance.  This way you can define a changing focus for a camera path.
Aperture and other lens parameters cannot be set this way.
However you can expose any camera parameters from the Unreal scene using the Get Aximmetry Scalar nodes, to be able to control it from Aximmetry.

Hi.

I'm very interested in this topic as well. The solution to export parameters from Unreal to Aximmetry doesn't work because the Aximmetry virtual camera object in Unreal doesn't have an Aperture parameter like the Cinematic Camera. Is there any way, in Aximmetry, to set the aperture? I'm new to the software so any hint will be much appreciated.

Thank you.

Hi,

You have to go inside the Aximmetry_VirtualCam blueprint to reach the parameter.

Please check Het Nieuwe Kader's solution in
https://my.aximmetry.com/post/333-cam-depth-of-field 

Hi,

Aximmetry 2025.2.0 BETA has just been released.
This update introduces general handling of camera aperture settings throughout the system:

• Calibration Profiles now can contain a mapping between the raw Iris Encoder values and the F-number (called Aperture throughout the system). It can be edited in the Basic Calibrator app (or directly in the XML file).
• Iris encoder value is read from protocols that support it. (Free-D officially does not support it, but some tracking systems like HTC Vive Mars use the spare "user" field for that purpose, and Aximmetry reads that.)
• Some camera tracking systems and protocols are capable of sending the final aperture value (Canon CV Protocol, NCam, Trackmen, AGTP). In these cases this value is used.
• For Virtual Camera paths, the aperture values can be defined for the A, B points both by mouse combination (Alt + Space + Right Mouse) or numerically.
• Record_3-Audio: aperture is added as an animated user property to the FBX.

Warmest regards,