i started out with the 18-55mm kit lens on my Canon T5i, took newbie acceptable photos, moved up to using Tv mode for outside photos of my black dog who is a fast mover so used 1/1000 SS, still acceptable photos. Purchased a Canon 24-70 f/4L. Using Tv mode, f/4, 1/1000 Auto ISO took blah photos so in trying to improve them with what I thought was a really nice lens, I tried Manual mode. Bright sunny day, set camera in Manual mode to f/8, 1/1000, ISO 100 and got photos so dark (black really) had to move exposure slider all the way up just to see which photo was which. But I dont know which setting to adjust, since I cant move EC in manual mode. Can you help this newbie?