Question about "correct exposure" from Bryan Peterson's book

[tvtt]

I've started reading Bryan Peterson's Understranding Exposure, but I'm stumped by one thing. In the exercise on pages 20 and 21 he says "adjust the shutter speed until a correct exposure is indicated in the viewfinder"

I know how to adjust the shutter speed, but where in my viewfinder will my camera tell me what exposure is correct?

 

[itznfb]

what camera do you have?

 

[tvtt]

I have a Nikon D50

 

[itznfb]

then your light meter is on the bottom of the viewfinder. when you're looking at your subject through the viewfinder, there will be a green line below the subject that looks like this:
+=======0=======-

if your shutter speed is too slow and you're over exposed it will look like:
+=======0=======-

too fast and under exposed:
+=======0=======-


EDIT
Understanding Exposure makes the assumption you have read your camera's manual

 

[tvtt]

then your light meter is on the bottom of the viewfinder. when you're looking at your subject through the viewfinder, there will be a green line below the subject that looks like this:
+=======0=======-

if your shutter speed is too slow and you're over exposed it will look like:
+=======0=======-

too fast and under exposed:
+=======0=======-


EDIT
Understanding Exposure makes the assumption you have read your camera's manual

Thanks so much for the help!!! At first I thought that was what it was, but then started second guessing it.

 

[itznfb]

np, glad i could help. D50 is a great camera by the way. i've got over 100,000 actuations on mine and it's still going strong