Auto Mode and ISO Auto Min. SS on an RX100 VI

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Thomas Niemann Veteran Member • Posts: 4,376
Auto Mode and ISO Auto Min. SS on an RX100 VI

When switching to Auto mode (on the dial) the shutter speed can go lower than that specified by ISO Auto Min. SS. Here is how you can reproduce this problem.

Let's assume that ISO Auto Min.SS is set to Standard. Consequently the slowest shutter speed should be 1/fl (focal length). For the following experiment shoot in a dimly lit room.

1. Set the dial to Aperture Priority and Auto ISO.

2. Zoom out to 200mm and take a shot.

I get 1/200 in step 2. ISO is set to a high value.

3. Set the dial to Auto and Auto ISO.

4. Zoom out to 200mm and take a shot.

I get 1/60 in step 4 and a much lower ISO value. This is incorrect. It should be 1/200 or higher. Note I was shooting the same target under the same light conditions.

Sony RX100 VI
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