The SD15 digital SLR camera has been available in the United States for a few days now, but there is still so much more to learn about the camera and its many functions.
Today, we are premiering the third video in the Sigma SD15 video series. The first video offered an introduction, the second video reviewed the camera’s extensive menu and user interface functions, and this video shows how the camera uses mirror lockup to ensure that camera shake is avoided when using a tripod.
The SD15’s two motor systems are driven by the mirror-drive and shutter-charge, which lower the vibration of the mirror movement, preventing camera shake. The mirror lockup mechanism raises the mirror, preventing further vibration when the shutter is released. The prevention of camera shake is especially effective for macro photography and when using ultra-telephoto zoom lenses. To see how this works, watch the video below.