Many projector beginners want to know that how to connect camera to projector. This article takes Epson projector as example and gives a solution. Credit: Epson You can connect your camera or other devices to the projector'sUSB-Aport and use it to project images and other content.If your USB device came with a power adapter, plug the device into an electrical outlet.Connect the USB cable (or USB flash drive) to the projector's USB-A port.Connect the other end of the cable (if it is applicable) to your device.