Thank you!

Situation: I import some images to Lightroom. I make some adjustments. I close Lightroom. I open Lightroom again and make more adjustments. I close again. Now I open Lightroom again and want to go back to the image before all the adjustments and start all over. How do I get back? Thanks!

Thanks again. I recently had some under exposed photos taken out doors, after looking at them again now that was probably the cause. I guess it never stops.

Thanks Gator, that was it. I've been playing with the settings lately, my bad. Just curious, does that mean the "Highlight Tone Priority" get adjusted with the ISO?

I am using a canon 7D. On the display on top of the camera where the ISO is, mine says "ISO D+". I have it set to 320, but I don't know what the "D+" is for. Anyone familiar with this?

This is a first for me, but here goes!
I used a Canon 7D, EF 24-105 f/4L lens, and all were shot at about 84 mm.

f/4, 1/8000, ISO 400


f/22, 1/250, ISO 400


f/8, 1/2000, ISO 400


f/11, 1/1000, ISO 400