Originally Posted by
GrumpyDiver
Susan - when you shoot in B&W, you really only have three variables to play with:
1. Image brightness;
2. Image tonal range; and
3. Contrast
When I first started into photography I shot pretty well nothing other than B&W for the first couple of years and one thing I had driven into my head by the commercial photographer who mentored me was that every B&W image needed to contain a full tonal range from pure white to pure black. This was a re-iterated when I took a colour correction course at the local college a couple of years ago. I know there could be some exceptions to this.
When you shoot B&W and convert to jpeg, there are a maximum of 256 shades available to you as a photographer 0 = pure black and 255 is pure white and everything else is some shade of gray. To get a decent image, you usually need all of those tones.
When I look at your second image's histogram you are pretty close to having pure black, but the brightest value you have on the light side is around 214, which tells me you are using around 84% of the total tonal range available to you.
If I adjust this to give you a full tonal range, the image looks like this:
All I did was to adjust the white point and the midpoint.