This message is often the result of the camera not being able to focus. To verify that this is or is not the issue set the camera to manual focus and try testing it again. Because this issue can affect the camera drivers, it is a good idea to restart ...
Here are the different settings and options that you may see with a DSLR attached. Please note these options are camera specific and may not match depending on your camera. Our recommendations are noted in italics. It is important to remember any ...