Hi Steve, Concerning # 3 on your list. This setting really relates back to your rendering view and the amount of detail and type of geometry in your model/rendering. If you have a model with intericate details you will need to at least use the "high" setting while saving your render to have the detail appear crisp. Also your distance from the image will also effect this setting. We very rarely us the "very high" setting. These settings can greatly effect rendering time. Using the camera "depth of field" option will also greatly increase rendering times.