400D broken any ideas? A photos many many stops under exposed.

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BillyBag2
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400D broken any ideas? A photos many many stops under exposed.
3 months ago

I have a 400D. The light meter appears to be broken. The settings are fixed and are not effected by light. Eg lens cap on compared to pointing and a light. The camera thinks it is bright as all the photos are many many stops under exposed. (solid black). Works OK in manual mode. I.E. sensor is OK.

It was working. I upgrade the FW to 1.1.1 and also added 400Plus. These appear to work fine but I now have this fault.

How does metering work? Is it through the sensor that takes the photo or a separate device? Is this likely to be a SW issue to do with the upgrade or a coinsidental HW fault such as a cabling issue?

Anyone ever see or heard of a fault like this? Was there a fix?

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