I just returned from Costa Rica where I had the opportunity to really try my D7100 under different types of environment. Well, I took over 3k pics where in many instances I had to push the ISO to 3200 due to poor light conditions. This camera performed flawless coupled with the 18-300mm lens. Used the camera mainly in A and S modes which are my favorites. There were instances where I pushed the EV to +2 without any problems. Used just about every focus mode combination the camera offers. I was very lucky that I own the D7000 which helped me greatly to handle my new D7100 that I received the week before departure. I did not get to use the crop feature but I am getting ready to use it this coming week while visiting the Everglades. This time it will be coupled with my 70-200mm. I feel that this is a superb camera and as I continue to learn about its new features, my pictures will improve dramatically.