It is strongly recommended that you read your camera manual and experiment with your camera in the daytime to learn how it works when shooting video. For planetary imaging, there are three basic ways to record video with a DSLR:
To record Live View, we need a computer hooked up to the camera via a USB cable, and special software like Astro Photography Tool, Backyard EOS, EOS Camera Movie Record, or Images Plus to record the video at 5x magnification. High-definition movie mode usually records video in 1920 x 1080 pixels or 1280 x 720 pixels in the camera to the memory card. These high-definition modes are great for normal daytime videos and specialized planetary imaging like ISS lunar and solar transits. But these modes don't give us the 1:1 pixel resolution that we need for high-resolution planetary imaging. For 1:1 pixel resolution, we need to use either 640 x 480 Movie Crop Mode or Live View with 5x magnification. We can shoot 640 x 480 Movie Crop Mode with just the camera, we do not need a computer. We simply record the videos to the memory card in the camera. 1. Live View To view Live View on the LCD on the back of the camera, just press the button that activates Live View. It can be a different button depending on the camera. For example, the Canon T2i (550D) has a dedicated Live View button. The Canon Digital Rebel XS (1000D) uses the set button. Check your camera manual. To record Live View, hook the camera up to a computer with a USB cable. Then use special software like Images Plus, EOS Camera Movie Recorder , Astro Photography Tool, or Backyard EOS, to record the video onto the computer hard drive. In software, click on the 5x button to access 1:1 pixel resolution while recording Live View. This is important! Your Live View video capture will be recorded to your computer. 2. High-Definition Movie Mode Settings High-Definition Movie Mode usually has additional settings that are accessed through the menus that are viewed on the LCD on the back of the camera. One of these settings is for exposure. The default setting is for automatic exposure. Set this to manual exposure. Mode Dial: (on the top of the camera) Menu Settings: 3. 640 x 480 Movie Crop Mode For high-resolution planetary imaging, you can only access 1:1 pixel data on the cameras that have 640x480 Movie Crop Mode: The T2i (550D), 60D, and 60Da. In 640 x 480 Movie Crop Mode, a separate set of menus will become available for settings specific to Movie Mode. To use Movie Crop Mode you have to physically turn the mode dial on top of the camera to Movie Mode, and then change to Movie Crop mode to 640 x 480 60fps in the menus. Movie Crop Mode will only be recorded on the memory card in the camera. The Canon T3i (600D) has a setting called "digital zoom Mode", when you are in 1920x1080 (Full HD) mode at 30 fps. It will magnify the image 3x to 10x. This setting however does not give 1:1 pixel resolution so recording Live View at 5x should be used instead of digital zoom Mode. Mode Dial: (on the top of the camera) Menu Settings: If recording high-definition movies, use a large-capacity, high-speed memory card in your camera. Canon recommends at least a Class 6 speed memory card for video recording. These movie modes can be recorded directly to the memory card in the camera, you do not need a computer to record them. Other Settings Other settings, such as Canon Picture Styles are applied to the image when a video is recorded. Canon Picture Style Settings Shutter speeds are real in high-definition video modes. Therefore because of the framing rate, you will not be able to go below a certain shutter speed. For 60 frames per second in 640 x 480 Movie Crop Mode, the slowest shutter speed that you can use is 1/60th of a second. At 30 frames per second, the slowest shutter speed you can use is 1/30th of a second. Shutter speeds in Live View are not real, they are "simulated". This means you can use as long a shutter speed as you would like to brighten an image in Live View. The actual "shutter speed" in Live view is approximately 1/30th of a second.
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