OK so, If the cushion is black and it is appearing black in the image and the blinking indicator show that it is very dark (hey... its a black cushion) then whats the problem? The yellow blinking specks doesnt mean the exposure is necessarily wrong, its just very dark at that area.
If on the other hand the scene has a large portion of yellow blinking in the area where there should be some light and detail visible, but there isn't, then that means it is underexposed.
When you say "Correct exposure" i guess you mean how YOU want it. This might be different to what the camera calculates for you in any of the auto modes.
If you are using matrix metering then the camera will "evaluate" the entire scene and decide the the exposure it thinks should be correct. It trys to average to an 18% Gray. Now, if you have some bright objects in the shot particularly if they are a decent portion of the frame, then the camera will darken (ie underexpose) and you might find the shadowy areas or your dark cushion for example is just black with no visible detail.
If that is not "correct" the way you wanted it you can the EV+ or - function.
If you think it is too dark then make it lighter by EV + or if it is too bright then make it darker by dialling towards EV-
Dial in some EV+ and you would see more detail in your darker area but just be aware that it may blow out the lighter areas to just white.
If you take a picture of the moon at night in auto mode using average metering. The camera will calculate a pretty slow shutter and maybe a high ISO and large apeture because the average of the scene is pretty dark. When you look at the result you see the that the moon is a bright white ball with no detail at all and the surrounding sky which you know should be black is kind of a horrible grainy dark grey. This isn't "correct exposure" is it. But the camera has calculated it that way.
You have to select the settings to give the result that you want.
Using the moon example you know that the moon looks a bright grey with a some detail of the craters etc visible. The rest of the sky is black. If you want the moon as the subject then you should read the meter only for the light from the moon and ignore the rest of the sky. This is what spot metering does. Set the metering mode lever? near the mode dial to center spot and point it at the moon and you mihght be suprised how bright it is and how fast the selected shutter speed is. Anyway the exposure settings are dramatically different to what you had using the matrix metering mode.
Going back to your chair / cushion scene. If you want "correct exposure" for the black cushion then try to use spot metering and point the centre spot towards the cushion and use that reading for your settings. Now you might find the slower shutter speed you might get is difficult to hold steady and the light coming from maybe a lamp or something is just blown out to pure white and thats not "correct exposure" either is it.
If you cant get the dark areas to expose how you want them and also get the light areas to expose how you want them just by using the availble light, then you are going to have to alter the lighting condtions with flash, extra lights, or alter the postions of the objects in the scene to be lit better.
For how to post photos read this:
https://www.pentaxforums.com/forums/post-your-photos/6-how-upload-photos-begi...tart-here.html
some editing programs might strip out the exif data. If it does that then you can just read it from your orginal in the camera and type the relevant info out manualy in your text.
Apeture, shutter, iso, metering mode (matrix, spot, center average), the camera mode (P,Av, Tv, M or whatever) and whether flash was used
Originally posted by Philoslothical 
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