Does the camera tell me the shutter speed it will use when in aperture priority and the aperture and ISO are set?

Question

I am wondering if a DSLR can show what the shutter speed it will use prior to shooting. I was doing some shooting in a library this morning and was using aperture priority. My daughter was running around and i wanted to make sure the image would be crisp so i wanted to dial in the ISO such that the shutter speed would be fast enough to freeze my daughter's limbs.

I was searching all over the camera and couldn't find a reading for shutter speed anywhere. Also, the manual was no help in this case.

Shouldn't the camera be able to tell the fastest speed to get a good exposure knowing the aperture and ISO I already set up, shouldn't it?

Answer

Depends on the camera, but most DSLRs that I've used indicate the metering information (shutter speed, aperture, and ISO) using visible numbers that appear inside the viewfinder. When you half-press the shutter, the camera meters the scene and indicates the settings it will use.

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