#iso #light #lseries #canonlens #24-70 #2.8

HI, i recently bought a new 24-70 L ii USM f/2.8, i used to have the same one but got stolen, thats why i replaced it. The problem is that it feels like this one doesnt have as much light as the other one. I have to put the ISO quite high even in 2.8 aperture to get the shot, and the grain is...