What are the best settings and techniques for capturing stunning astrophotography with a Canon 70D?

To capture stunning astrophotography with a Canon 70D, use a wide-angle lens with a large aperture, set the ISO to around 1600-3200, use a long exposure time (around 20-30 seconds), and shoot in RAW format for better post-processing. Consider using a tripod to avoid camera shake and a remote shutter release for precise timing. Experiment with different settings and techniques to find the best results for your specific conditions.