It's like having a professional photographer on your side to suggest the best settings for your camera. Camraw is like a calculator for your DSLR camera. Here is how Camraw works Point your phone from the same place you will use your camera and select how clear or blurred a background is needed. Voila, you have the Aperture and ISO and Shutter speed needed for that situation. Use that in your DSLR for the perfect shot and of course play around with different settings to give your own touch. Brightness needs to be adjusted - No problem - Use the Luminance setting to modify that. Now that you have your favorite DSLR - All you need is Camraw. Go ahead be a Pro!