Originally Posted by ChuckV
OK Cannon 30D taking some monochrome photos that look good on the camera previewer but when I look at them in PS they are almost completely blak, way too dark. Is it my computer settings?
By default the LCD brightness is set too high on the 30D. Adjust the brightness to one notch above the lowest setting. That will give you a truer representation of the color and lightness and darkness of your shots.
You can test by shooting a photo of a Gray card at your current settings and exposure and see where the spike in the histogram is located. If it is in the center, then the gray card will look gray in PS (rgb will be 128,128,128 or close). If its not about in the middle, then your exposure is off.
Post a few examples of your dark photos and we can give you further advice.
Re: very amateur question- photos too dark once on computer