Field of View Mode (Horizontal/Vertical) does not update FOV or focal length in Camera Settings

[mostafaVSX2M]

When switching Field of View Mode between Horizontal and Vertical in Camera Settings, the Field of View value and Focal Length often stay unchanged. For a standard lens setup, that leaves the UI in an inconsistent state (Vertical mode showing a horizontal FOV angle).

Steps to reproduce

1. Open Camera Settings on a perspective camera.
2. Set Focal Length to 25.
3. Set Sensor Size to 36 × 24 mm.
4. Set Field of View Mode to Horizontal.
5. Note Field of View (~71.51°) and Focal Length (25).
6. Switch Field of View Mode to Vertical.
7. Observe Field of View and Focal Length, both remain the same.

Expected
With focal 25 mm and sensor 36 × 24 mm:

• Horizontal FOV ≈ 71.5°
• Vertical FOV ≈ 51.3°

When switching mode, either the FOV value should update to match the selected axis, or Focal Length should change if the FOV angle is preserved.

Actual
After switching to Vertical, Field of View stays ~71.51° and Focal Length stays 25. 71.51° matches horizontal FOV for this lens, not vertical.

[michael_nikelsky]

This seems to be a UI update issue: When you switch from Vertical to Horizontal you are correct, the Focal Length stays the same. However, if you deselect the camera and select it again, the Focal Length should show the correct value.