How to reproduce:
1. Open the attached “bug-cinemachine-iso” project
2. Select “CM vcam1” in the Hierarchy
3. In the Inspector’s “CinemachineVirtualCamera” component navigate to “Lens” → “Physical Properties” → “Iso” and change its value to any other number (e.g., “143”)
4. Select “Main Camera” in the Hierarchy
5. Expand the “Projection” property in the “Camera” component
6. Observe the “ISO” value under the “Camera Body” category

Expected result: The value is the same as the new value in the Cinemachine camera
Actual result: The value remains the same (200)

Reproducible with: 2022.2.0a10, 2022.2.0b10, 2023.1.0a12
Not reproducible with: 2020.3.39f1, 2021.3.11f1, 2022.1.20f1, 2022.2.0a9

Reproducible on: Windows 10

Notes:
1. HDRP is required to access the physical properties
2. Also reproduces with Aperture and Shutter Speed properties