2 Important K10 Issues that need to be settled for good!! (Please read!)

Started Jan 5, 2007 | Discussions thread
Jan Moren Veteran Member • Posts: 3,745
Re: Under exposure in M Mode

PentaxNick wrote:

does the amount of underexposure depend on the aperture set? I was
just thinking it could be that the camera is taking the reading
before the aperture has completely stopped down.

It changes with the aperture.

But, it changes exactly the same as if the camera tries to adjust both aperture and exposure according to the program line. But since it can't adjust aperture, the exposure goes wrong. Exactly how much, and whether it becomes over- or underexposure depends on the ambient light level. But you get consistently identical results to when you use program line; it's pretty clear it's what is effectively happening.

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