Dual native ISO is a camera feature that provides two sensitivity settings that the manufacturer identifies as native for that camera or recording mode. Panasonic lists separate native ISO values for some cameras and modes, including V-Log. The exact values depend on the model and mode. Check a model’s official specifications.

What “native” means

ISO is one of the exposure controls, but a camera’s ISO range is not always a simple scale with identical image quality at every step. A native ISO point is a sensitivity setting associated with the sensor or camera’s designed operating range. With dual native ISO, the camera can switch between two such points as conditions change.

That can be useful if a shoot moves from a well-lit room to a darker location. It does not mean the camera produces noise-free footage, and it does not replace good exposure, lighting or lens choice. Noise, highlight headroom and colour can still vary with the scene and recording mode.

How to use the feature

Before filming, check whether the camera’s dual ISO values change with the selected picture profile. Panasonic’s specifications show that a camera may have different native values in Normal and V-Log modes, so the same number should not be assumed to apply everywhere.

Make a short test at each native setting in the lighting you expect to use. Compare skin, shadows and highlights at the final delivery size, and check that the ISO change does not create an unwanted exposure or colour shift. Follow the model’s manual for automatic or manual switching options. Treat the second native setting as another tool in the exposure plan, not as permission to under-light a scene.

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