Digital SLR cameras can be expensive. If you haven’t learned how to adjust all the settings on the camera, you have a learning curve in front of you. That’s where today’s site comes to the rescue. CameraSim allows you to adjust settings as if you were looking through the viewfinder of a real camera. Adjust the settings on the Web site and see how they change the image you see. In short, you can practice using a DSLR without having to buy one. Even those of you experienced with a DSLR may find this a great site for perfecting your photography skills.