Here is an image of the Orion Nebula taken with a Canon Digital Rebel and my C-8 Telescope at prime focus.  I also used a Lumicon Cassegrain Easy Guider with a F/5.8 focal reducer.  This is a single exposure of 175 seconds at ISO 1600.   The image was processed in IRIS with a dark frame subtraction, then brought into Photoshop to enhance levels, color and decrease grain.