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There are two key techniques for shooting in low light, and both run the risk of causing ‘noise' in your images. Noise shows itself as random dots of colour and, if too prominent, can overpower the real information in the image. High ISO noise reduction is set to Standard on your camera by default. This only comes into play when you're using higher ISO settings, so can be left alone. There are also options for Low and High, plus some EOS models offer a Multi-shot option, which takes four JPEG images and combines them in-camera to produce a virtually noise-free image. Given that the camera has to align these images, it works best with static subjects. Long exposure noise reduction is off by default, but you can choose for the camera to apply to images shot with a 1-second shutter speed or longer. The Auto option means that the camera will process the image automatically if it detects noise that's typical of long exposures in the image. (*Why DPP? Because other software programs can only mimic the Canon algorithms, second-guessing how they work. For the real deal, use Canon DPP to convert your RAW files.) |
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Practical Training Day: Low Light and Night Photography
Locations: Central London, Liverpool, Bath
From £129, including pre-course tutorial