DC refers to a digital camera, DV refers to a digital video camera, and Xuanfei refers to Canon's small photo printer. Its name is SELPHY, and its transliteration is Xuanfei. Mirrorless refers to a miniature SLR, positioned as a cross-border camera product between a digital SLR camera and a card camera. Its most important structural feature is that it does not have a reflector or prism. "Micro-Single" is a trademark of Sony Corporation.